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If the diameter of a circle is 20 cm, what is the area? 10π cm2 20π cm2 50π cm2 100π cm2

User Akbarbin
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1 Answer

2 votes

Answer:

Half of 20 is 10(new radius)

10^2(radius being squared) = 100

Next step is to multiply by pi

100π cm2

Explanation:

Formula of area of a circle:

πr^2

pi x radius squared

User Alexandr Dorokhin
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4.0k points