Mathematics College

Rounded to the nearest tenth, what is the perimeter of rectangle ABCD?

A.
48.3 cm
B.
54.6 cm
C.
60.0 cm
D.
173.2 cm

Rounded To The Nearest Tenth, What Is The Perimeter Of Rectangle ABCD?A. 48.3 CmB. 54.6 CmC. 60.0 CmD.

Answers

Answer 1
Answer:

54.6 cm

Step-by-step explanation:

Hi there !

T30° => AD = AC/2 = 20cm/2 = 10 cm

T.Phytagoras

CD = √AC² - AD²

= √20² - 10²

= √400-100

= √300

= 10√3

= 10×1.73

= 17.3 cm

P = 2AD + 2CD

= 2×10cm + 2×17.3cm

= 20cm + 34.6cm

= 54.6 cm

Good luck !

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

hope that will help you

The slope of the line will be 2/3.

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where,

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answer:

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Answer:

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Step-by-step explanation:

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Answer:

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Answers

Answer:

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Step-by-step explanation:

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Answers

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

It’s the answer I did the math

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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Answers

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Step-by-step explanation:

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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