How do you determine if triangles or any polygons are similar?

Answers

Answer 1

For example, all equilateral triangles are similar and all squares are similar. If two polygons are similar, we know the lengths of corresponding sides are proportional. In similar polygons, the ratio of one side of a polygon to the corresponding side of the other is called the scale factor.


Related Questions

uhh help.......................................

Answers

Answer:

128/15 minutes or 8.5 minutes

Step-by-step explanation:

By using unitary method, Time required to paint 5/8 of wall = 16 minutes.

Time required to paint 1/1 of wall = 16*8/5

Hence, Time required to paint 1/3 of wall = 16*8/5*1/3

Hope this helps, thank me later

Answer:

8.53 minutes

Step-by-step explanation:

PLEASE HELP! NO LINKS!!

Answers

Answer:

69 slices

Step-by-step explanation:

3 5/6 = 3 15/18 = 69/18

if each slice is 1/18, then 69 slices

pre-calc
please help​

Answers

Answer and Step-by-step explanation:

First, get theta by itself.

θ = [tex]sin^{-1}(\frac{\sqrt{3} }{2} )[/tex]

Plug this into a calculator.

θ = 60°

To get it in radians, multiply 60 by [tex]\frac{\pi }{180}[/tex].

θ = [tex]\frac{1}{3} \pi[/tex] radians

#teamtrees #PAW (Plant And Water)

Tony love finding the area, such as pizza slices. His favorite pizza is a pepperoni with mushrooms that he can't stop talking about. The diameter is 18 inches and it is always cut into 6 slices of exactly the same size. In terms of pi, what is the surface area of one slice of the large pizza? (hint: think of the pizza as a sector you want to find the area of). Fill in your answers in the form of a fraction, aπb. You do not need to worry about pi as it is already built into the answer.

Answers

Answer:

[tex]\frac{27\pi }{2}[/tex] square inches.

Step-by-step explanation:

The pizza would have a circular shape so that dividing it into 6 slices implies that there are 6 sectors.

The central angle formed by each sliced pizza = [tex]\frac{360}{6}[/tex]

                                                                  = [tex]60^{o}[/tex]

Given that the diameter = 18 inches, thus;

radius = [tex]\frac{18}{2}[/tex]

          = 9.0 inches

Since the sliced pizza now has the shape of a sector, then;

the surface area of each large pizza = (θ/360)* [tex]\pi[/tex][tex]r^{2}[/tex]

                                   = [tex]\frac{60}{360}[/tex]*[tex]\pi[/tex]*[tex](9)^{2}[/tex]

                                   = [tex]\frac{1}{6}[/tex]*[tex]\pi[/tex]*81

                                   = 13.5[tex]\pi[/tex] square inches

Surface area of each large pizza = [tex]\frac{27\pi }{2}[/tex] square inches

The surface are of one slice of the large pizza is [tex]\frac{27\pi }{2}[/tex] square inches.

Does the graph represent a function?

Answers

Answer:

Yes

Step-by-step explanation:

I think it would be every domain has 1 range

Hope It helps Have a Good day

what is the circumference of a circle with a diameter of 40

Answers

The circumference of the circle with a diameter of 40 is approximately 125.6636 units.

To calculate the circumference of a circle, we can use the formula:

Circumference = π * Diameter

Given that the diameter of the circle is 40, we can substitute this value into the formula:

Circumference = π * 40

The value of π (pi) is approximately 3.14159, so we can further simplify the equation:

Circumference ≈ 3.14159 * 40

Calculating this expression gives us:

Circumference ≈ 125.6636

Therefore, the circumference of the circle with a diameter of 40 is approximately 125.6636 units. Note that the unit of measurement is not provided in the question, so the answer is given in generic units.

For more such questions on circumference

https://brainly.com/question/20489969

#SPJ8

Simplify fully 8xz3/20x2y2​

Answers

Answer:

[tex]\frac{2z^3}{5xy^2}[/tex]

Step-by-step explanation:

Answer:

Step-by-step explanation:

i is the only thing i in my life and green and orange safe because he has to go back and forth with me because he is joke

Define prime numbers with example and way to find the prime numbers by sieve Eratosthenes?

Answers

Answer:

A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways of writing it as a product, 1 × 5 or 5 × 1, involve 5 itself.

In mathematics, the sieve of Eratosthenes is an ancient algorithm for finding all prime numbers up to any given limit. It does so by iteratively marking as composite the multiples of each prime, starting with the first prime number, 2

Step-by-step explanation:

Hope it helps you ☺

Tell whether the given value is a solution of the inequality. x+1>10;x=9

Answers

Answer:

x=9 is not the solution to the inequality.

Step-by-step explanation:

10 is not greater than 10

Bobby calculates the mean number of goals for each of the players on a hockey team in the set {4, 7, 5, 8, 12, 2, 3, 5, 7}. Determine the mean absolute deviation (MAD) of goals for this team. Round your answers to the nearest tenth.

Answers

Answer:

2.3

Step-by-step explanation:

n = Number of data points = [tex]9[/tex]

The data set is

[tex]4, 7, 5, 8, 12, 2, 3, 5, 7[/tex]

Mean

[tex]\bar{x}=\dfrac{4+7+5+8+12+2+3+5+7}{9}=5.89[/tex]

Absolute mean deviation

[tex]\dfrac{|4-5.89|+|7-5.89|+|5-5.89|+|8-5.89|+|12-5.89|}{9}\\+\dfrac{|2-5.89|+|3-5.89|+|5-5.89|+|7-5.89|}{9}=2.3[/tex]

The mean absolute deviation of the data set is [tex]2.3[/tex].

1/5 of the mangoes in a bag is green ,0.75 are ripe and the remaining 12 mangoes are rotten . How many mangoes are there in the bag altogetherer? don't send in file​

Answers

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: 240 mangoes

Explanation:

1/5 + 0.75 = .95 = 95%

5% = 12

50% = 120

100% = 240

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer:

240

Step-by-step explanation:

1/5

0.75 = 3/4

1/5 + 3/4 = 19/ 20

1 - 19/20 = 1/20

therefore 12 mango equal 1/20

12 × 20 = 240

12/240 is the same as 1/20

Can someone help me on this question I kinda forgot how to find slope lol

Answers

Answer:

D

Step-by-step explanation:

PLEASE HELP!!!!!!!!!!!
Holly operates a fruit bouquet business. Function f represents the costs, in dollars, that Holly incurs when she creates x bouquets to sell. Function g represents the revenue, in dollars, Holly receives from selling x bouquets. Which combination of functions f and g represents the profits, in dollars, Holly earns when she creates and sells x bouquets? A. (f − g)(x) B. (fg)(x) C. (g − f)(x) D. (g + f)(x)

Answers

Answer:  

C. (g − f)x

Step-by-step explanation:  Subtract costs (f) from revenue (g) and multiply by bouquets made (x) to find profit.

Example would be if it costs $1 to make each bouquet and she charges $3 for each bouquet made.  If she made 5 and sold them it would be...

(g-f)x

(3 - 1) 5 = profit

(2) 5 = $10 profit

Find the perimeter of the figure to the nearest hundredth.​

Answers

Perimeter: 36.84 feet

Let’s start with the easy part...all the rectangle pieces 6 x 3 = 18 feet

We know from subtracting the rectangle length (6ft) from the total length (12 ft) that the diameter of the circle is 6ft.

Circumference = diameter x pi
= 6 x 3.14 = 18.84

We have the circle split into 2 halves, but the circumference remains the same

18 + 18.84 = 36.84

The distances and times from a track meet for four schools are shown.
School has the fastest average time per mile at the track meet.

Answers

Answer:

Average time for West Middle was maximum.

Step-by-step explanation:

Average time for a track meet for schools = [tex]\frac{\text{Time}}{\text{Distance}}[/tex]

For Eastbay Middle,

Average time per mile = [tex]\frac{42}{7}[/tex]

                                     = 6 minutes per mile

For Northwest Middle,

Average time = [tex]\frac{25}{5}[/tex]

                       = 5 minutes per mile

For South Central Middle,

Average time = [tex]\frac{28}{4}[/tex]

                       = 7 minutes per mile

For West Middle,

Average time = [tex]\frac{48}{6}[/tex]

                       = 8 minutes per mile

Therefore, average time for West Middle (8 minutes per minute) was maximum.

PLEASE HELPP I WILL MARK YOU GOOD

Answers

Answer:

Volume: 41.643

Surface area: 119.04 (nearest tenth... I don't know...sorry)

Step-by-step explanation:

I didn't know if you need volume or surface area so you got both!

a page of a calendar is 45 cm long and 26 cm wide. what is its area?​

Answers

Answer: veasy

Step-by-step explanation: it is a rectangle then it's area will be length *breadth =45cm*26=1170cm^2.

Answer:

1170 or 0.117 m^2

Step-by-step explanation:

HELPPP THANKS ILL GIVE BRAINLIEST! no links

Answers

Answer:

2, 10, 0, 4

Step-by-step explanation:

"regrouping 1 tenth into 10 hundredths" is taking one of those green tenth sticks and dividing it into 10 hundredth squares. That means that you have 2 wholes, 2 tenths (remaining green sticks), and 10 hundredths (because the only hundredths you have are the ones you got from that tenth you regrouped).

After crossing them out, you have 2 wholes, 0 tenths (because you only had 2 before), and 4 hundredths (because you crossed out 6 of the 10, 10-6=4).

Hope I could help you!

a strawberry cake is cut into three pieces. The Arc measures of all three pieces are congruent. What is the measure of angle XYZ​

Answers

Answer:

I think the strawberry cake measure have to be 360⁰. so the arc measure is 360⁰÷3=100

so we have all three arcs congruent b/c all measures 100⁰

I think XYZ=100⁰

Step-by-step explanation:

solution given:

a strawberry cake is cut into three pieces

since

Arc measures of all three pieces are congruent

all 3 arc are equal

So it forms a equilateral TRIANGLE

each angle of equilateral triangle is 60°

So,measure of angle XYZ is 60°.

Please answer all the questions I will mark brainliest

Oops I put this on math on accident ;-;

Answers

Answer:

water

other animals

sight

Answer:

3. water

4. other animals

5. sight

Step-by-step explanation:

3. notic the word hydraulic

4. carnivores only eat meat

5. notice the word optical

And remember dont always depend on other people to do your work.  it will just make it harder on you.

The diameter of your bicycle wheel is 24 inches. How far will you move in one turn of your wheel?

Answers

Answer:

24pi inches, or 75.3982237in

Step-by-step explanation:

circumference is diameter times pi

Describe how to determine if two lines are parallel, perpendicular or neither. Give an example of a parallel line, a perpendicular line and a line which is neither parallel nor perpendicular to y=2/5x+7.

Answers

Answer:

In order to determine if two lines are parallel, perpendicular, or neither, look at their slopes. If the lines have the same slope, they are parallel. If the slopes are opposite reciprocals, then they are perpendicular. If the slopes of the lines are not any of those, then they are neither.

Parallel line: [tex]y = \frac{2}{5} x[/tex]

Perpendicular line: [tex]y = -\frac{5}{2} x[/tex]  

Neither: [tex]y = 3x[/tex]

Step-by-step explanation:

In order to determine if two lines are parallel, perpendicular, or neither, look at their slopes. If the slopes of the two lines are the same, then they are parallel. If the slopes of the two lines are opposite reciprocals, then they are perpendicular. If the slopes of the lines are not any of those, then they are neither.  

The equation [tex]y = \frac{2}{5} x+7[/tex] is in slope-intercept form. The y is isolated and it's in [tex]y = mx + b[/tex] format. Whenever an equation is in slope-intercept form, the [tex]m[/tex], or the coefficient of the x-term, represents the slope. So, the slope of the given line is [tex]\frac{2}{5}[/tex]. Therefore, use the rules listed previously to find lines that are parallel and perpendicular.

Parallel lines have the same slope, so an example of a parallel line would be [tex]y = \frac{2}{5} x[/tex].

Lines that are perpendicular have slopes that are opposite reciprocals, so an example of a perpendicular line would be [tex]y = -\frac{5}{2} x[/tex].

Lines that are neither do not fall into either of those categories, so an example of a line that is neither would be  [tex]y = 3x[/tex].

Dimensions of cone

Radius:8
Height:2

Diameter :6
Height :4

Radius:2.5
Height 2


Find the volume of a cone




Find the volume of a cylinder


Answers

452.16

39.27

402.12

113.1

133.97

15.7

108.56

100.48

37.68

Answers

Answer:

133.97

Step-by-step explanation:

Justin is a teacher and takes home 76 papers to grade over the weekend. He can grade at a rate of 7 papers per hour. How many papers would Justin have remaining to grade after working for 10 hours?

Answers

Answer:

6

Step-by-step explanation:

After 10 hours he has graded 10*7 papers which is 70

76-70 = 6

Answer:

The answer is 6

Step-by-step explanation:

10X7=70

76-70=6

√(64÷√(98
please help thanks ​
and show work it would be deeply appreciated

Answers

Answer:

√(64÷√(98 = (4√2)/7

Step-by-step explanation:

The Sqrt(64) is equivalent to 8

And the Sqrt(98) is equivalent to Sqrt(49) x Sqrt(2) also known as 7 Sqrt(2)

Now since we can't have a Square Root at the denominator we multiply it by Sqrt(2) on both the numerator and denominator

We now have 8Sqrt(2)/14 which can be simplified to (4√2)/7

Students were asked to vote for the leisure activity they liked best. The data are shown in the table. A 2-column table with 5 rows. Column 1 is labeled Number of Votes with entries 18, 22, 34, 28, 8. Column 2 is labeled Leisure Activity with entries Reading, Watching movies, Playing video games, playing sports, Other. Which statements are true? Check all that apply. A total of 34 students voted. The longest bar on a bar graph would be for the “Playing video games” category. The bars for “Watching movies” and “Playing sports” would be the same length. It would be time-consuming to show the data in a line plot because the data values are large. A line graph could be used to effectively represent the data.

Answers

Answer:

2,4 B and D

Step-by-step explanation:

Answer:

B and D

Step-by-step explanation:

What is the equation of the trend line in the scatter plot?​

Answers

Answer:

6,4

Step-by-step explanation:

Answer:

y= -3x+ 18

Step-by-step explanation:

hope it helps :)))))

Tell whether the given value is a solution of the inequality.
x + 1 > 10; x = 9

Answers

Answer:

given x+1 > 10,

x > 10 - 1

x > 9

which means x MUST BE more than 9 , which also means 9 isnt included in the inequality therefore x = 9 is not a solution.

7. x + y = 8 x - y = 4​

Answers

Answer:

7. x + y = 8 x - y = 4

2

jope in help

Answer:

x=6 y=2

Step-by-step explanation:

6+2=8 and 6-2=4 so x has to be 6 and y has to be 2

ill give u the crown thingy pls help

Answers

Answer:

y=18 x=15

Step-by-step explanation:

1.

multiplyboth sides by 3

2(x-6)=18

divide both sides by 2

x-6= 9

add 6 on both sides

x=15

2.

add 6 on both sides

2/3y= 12

multiply both sides by 3

2y=36

divide both sides by 2

y=18

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Read the sentence.I did a calculation to determine how wide the rectangle was, and it turned out to be wider than I had originally thought.Which of the following is the correct definition for calculation? A. a mathematical solution to a problem B. a passage from a book C. a review of prior knowledge D. something that pertains to space or the universe An Introduction To ChemistryAnswer SheetPlease provide your answer in the answer sheets!118219320421522623724825926102711281229133014311532163317An Introduction To Chemistry1. During his distinguished career this scientist received two unshared Nobel prizes. One for chemistry and one for peace.Alfred NobelMarie CurrieLinus PaulingAlbert Einstein2. The study of matter and the changes it undergoes describes the science of ______.physicsmathematicschemistrybiology3. The _________ is the fundamental unit of matter.atomcompoundnucleusproton4. The atom is composed of three subatomic particles known as _____, ____ and _______.neutrals, electives and peeonsquarks, alpha rays and xenonselectrons, protozoans and electricalsprotons, neutrons and electrons5. Protons are _________ charged particles found in the nucleus of an atom.neutrallypositivelynegativelybrighltly6. Electrons are ________ charged particles that orbit the nucleus of an atom.negativelypositivelyneutrallybrighltly7. Neutrons are ________ particles found in the nucleus of an atom.negatively chargedpositively chargedunchargedbrightly8. An ion is an atom or molecule that ___________.is electrically neutralis composed of two or more elementsis man madecarries a charge9. Which of the following chemical species is a cation?Cl-H+AuHCO3-10. The atomic number of an atom or element describes the number of _______.electrons orbiting the nucleusneutrons in the nucleusalpha particles in the nucleusprotons in the nucleus11. Mass is proportional to the number of _________ that make up an object.atomscellsneutronsprotons12. Weight is best described as _____________.the number of atoms in an objectthe pull of gravity on matterthe electrical charge on an ionthe number of electons in an atom13. Atoms of any one type of element, such as gold, all posess the same number of _______.electronsneutronsprotonsnuclei14. There are currently _______ known elements.659811215215. Element _______ are one or two letter abbreviations for the names of the elements.numbersatomic numberssymbolscharacters mass16. Two or more elements that combine as a result of a chemical reaction form _____.atomsionsmixturescompounds17. An example of a mixture would be __________.a bar of pure goldthe air we breathesodium chloride saltpure water18. The three states of matter are ________, ________ and _________.atoms, molecules and compoundsatoms, compounds and mixturessolids, liquids and gasessolids, gases and steam19. The least dense and most energetic of the three states of matter is ____.the gaseous statethe liquid statethe solid statethe elemental state20. All measurements must consist of both ____________.a size and a shapea price and a volumea number and a unita color and a number21. Density is a physical property that refers to _____________.the number of atoms in an objectthe weight of an objectthe mass of an object relative to its volumethe weight of an object relative to its cost22. A kilogram is equal to ________ grams.1101001,00023. There are _______ centimeters in a meter.1101001,00024. Measurements are _________ because of equipment error and human judgment.uselessuncertainperfectinaccurate25. The number 221.5 contains ______ significant figure(s).123426. The number .001 contains ______ significant figure(s).123427. The number 226 would be scientifically noted as ______.2262.26 x1012.26 x 10222.6 x 10128. 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