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What is the area of a circle with a Radius of 4 and a Diameter of 2?

(Its on Khan)

User Chris Gill
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1 Answer

3 votes

Answer:4^2≈50.26548

Explanation:

πr2.

Where r is the radius and π≈3.14 , the ratio of a circle's circumference to its diameter.

Plugging in 4 from the radius, we get.

42π

⇒16π inches.

This is our exact answer. Alternatively, we can plug in 3.14 for π to get.

50.26 inches.

User Tommaso
by
8.9k points

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