Mathematics Middle School

What is the circumference of the circle with a radius of 4.5 meters? Approximate using π = 3.14.

14.13 meters
28.26 meters
56.52 meters
63.59 meters

Answers

Answer 1

Answer: the circumference of this circle is : 28.26 meters.

Step-by-step explanation:

The formula for circumference is = 2*pi*radius

Here,

pi=3.14

radius=4.5meters

hence,

using the formula; 2*pi*r

circumference =2 * 3.14 * 4.5m

circumference = 28.26 meters.

Answer 2

Answer:

The Circumference of circle os 28.26 meters.

Step-by-step explanation:

Given : Radius of circle is 4.5 meter

To Find : Circumference of circle

Using Formula :

[tex]\leadsto\sf{Circumference_{(Circle)} = 2 \pi r}[/tex]

Solution :

Finding the Circumference of circle by substituting all the given values in the formula :

[tex]\leadsto\sf{Circumference_{(Circle)} = 2 \pi r}[/tex]

[tex]\leadsto\sf{Circumference_{(Circle)} = 2 \times \pi \times r}[/tex]

[tex]\sf{\leadsto{Circumference_{(Circle)} = 2 \times 3.14\times 4.5}}[/tex]

[tex]\sf{\leadsto{Circumference_{(Circle)} = 6.28\times 4.5}}[/tex]

[tex]\sf{\leadsto{Circumference_{(Circle)} = 28.28 \: meteres}}[/tex]

Hence, the Circumference of circle is 28.26 meters.

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Related Questions

Five balls, A, B, C, D, and E, weigh 30g, 50g, 50g, 50g, and 80g each. Which ball weighs 30g?

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Answer:

A weighs 30 because it is always on the higher side

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Answer:surface area of pyramid is 118.80

And the volume of the cube is 1000

Step-by-step explanation:explain on picture

Answer:169.92 cm^2

Step-by-step explanation:

The base is 7.2 x 7.2 (This equals 51.84)

The area of one triangle is 29.52

There are 4 triangles with the same side lengths so you multiply 29.52 x 4.

This would equal 188.08.

Then you add everything together.

This equals 169.92 cm^2.

Answer:1,000 m^3

The formula for volume is hlw.

One of the side lengths of the cube is 10.

If the height, length, and width are ten, then you multiply them all together.

This would give you 1,000.

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Triangle ABC ~ triangle DEF. Use the image to answer the question.

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Answer:

3.3/11 = DF/7.6

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Please Help me i really need to pass this!

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Answer: I must say it's (0,3)

Step-by-step explanation: The two lines meet at (0,3) so it's (0,3).

Hope it helps! :D

Question 21: A box covers an area of 8 3/4 in. squared when resting on its base. The volume of the box is 74 3/8 in. cubed. Can you find the surface area of the box? Explain.

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My dad had help my sister with this one. The answer is A

graph f(x)=|x+1|+3 then find the domain and range

mainly looking at how id find the coordinates!

Answers

Domain is all real numbers. Range is

Step-by-step explanation:

The function  is a transformation of the parent function  by moving the function up by 3 units.

So, the graph of the function is shown below.

From the graph, it is clear that the  values has no limitation and hence can take any real values. Domain is the set of all possible  values.

So, domain is the set of all real numbers.

Range is the set of all possible values for  for the given domain.

From the graph, the minimum value of  is at the point (. So, the minimum value of y is 3. The  value then goes on increasing towards infinity.

Therefore, range is a real number greater than or equal to 3.

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In the US, 42% of people have type A blood, 10% have type B, 4% have type AB, and 44% have type O. People with type Band type AB blood can receive type B blood. What percentage of people can receive transfusions of type B blood?

Answers

Answer: 14%

Step-by-step explanation:

10+4=14

According to the information given, people with type B and AB blood can receive transfusions of type B blood.

So, the percentage of people who can receive transfusions of type B blood is the sum of the percentage of people with type B and AB blood, which is:

10% + 4% = 14%

Therefore, 14% of people can receive transfusions of type B blood.

Please help i'm so confused

Answers

Answer:

2/3

Step-by-step explanation:

because 1 1/2 x 2/3 = 2 1/4

Answer:

1 1/2 = 3/2

2 1/4 = 9/4

3/2 divided by 9/4 = 3/2 multiplied by 4/9 = 2/3

EXPLANATION : when we have 2 fractions and we have to divide them , we have to reverse the fraction that we are dividing by and multiply it. sometimes we can simplify the fractions , sometimes we can't. for example , with 3/2 multiplied by 4/9 we simplified 3 and 9 and the 2 and the 4 which left us with 1/1 ( 1 ) multiplied by 2/3 , which gave us the answer 2/3 .

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Use the image to determine the direction and angle of rotation.



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Answers

90° clockwise rotation
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Determine the equation of the line of fit.

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In slope-intercept form (y = mx + b), m represents the slope (rise/run) and b represents the y-intercept.

Let's look at the graph and pick two points, (2, 70) and (4, 80) and use slope formula, y2 - y1 / x2 - x1
80 - 70 / 4 - 2
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5
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The y-intercept is (0, 60) or 60

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Your answer is y = 5x + 60

Jaden made a rectangular sign that is 1.4 meters long and 1.2 meters wide to post on the wall of his store. How many square meters of wall does the sign cover? The answer is 1.68, but to solve the problem, you need to find 1.4 x 1.2(which it is 1.68). Estimate the area of wall that the sign will cover. Explain your thinking please.

Answers

To estimate the area of the wall that the sign will cover, we can use some rounding techniques to simplify the calculation.

First, we can round the dimensions of the sign to the nearest whole number to make the multiplication easier. Rounding 1.4 to 1 and 1.2 to 1, we can estimate that the sign covers approximately 1 square meter of wall.

This estimation assumes that the sign is placed directly on the wall with no gaps or overlaps. In reality, the actual area of wall covered by the sign may be slightly larger or smaller depending on the installation method and any spacing between the sign and the wall.

It's important to note that while estimation can be useful for getting a rough idea of the answer, it's not always accurate and should not be relied upon for precise calculations. In this case, using the actual dimensions of the sign to find the area of the wall covered (1.4 x 1.2 = 1.68 square meters) gives a more accurate result.

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Then, the participants were split into three groups: the first group received no physical therapy, the second group received traditional physical therapy, and the third group received the new experimental physical therapy.

The group which receives no physical therapy would best be described as which of the following?

Explanatory Variable
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Answers

Answer: The group which receives no physical therapy would best be described as the Control Group.

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Step-by-step explanation:

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