amialeggett3 amialeggett3

07-04-2020
Mathematics

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5. What is the area of a circle with diameter 20 cm? Round your answer to the nearest tenth.

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mabb8000 mabb8000

07-04-2020

Answer: 314 cm squared

Step-by-step explanation:

20 divided by 2 = 10

10 x 10 = 100

100 x 3.14 = 314

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kamraaa kamraaa

07-04-2020

Area of a circle = πr²

Radius = 1/2 d = 1/2(20) = 10

A = π • 10²
= π • 100
= 314.2cm

Answer Link

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