What is the area of a circle with a diameter of 21 centimeters? use 3.14 for pi

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Gates asked Jan 20, 2022

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34 votes

What is the area of a circle with a diameter of 21 centimeters?

use 3.14 for pi

Mathematics
high-school

Gates asked Jan 20, 2022

by Gates

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24 votes

Answer:

346.185 cm²

Explanation:

radius = diameter / 2

Area of a circle = πr²

radius = 21/2 = 10.5

Area = 3.14(10.5)²

Area = 346.185 cm²

Evolon answered Jan 21, 2022

by Evolon

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15 votes

Answer:

346.4 square centimeters (cm²)

Myermian answered Jan 25, 2022

by Myermian

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