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A circle has a radius of 3.93 inches. Using the correct number of significant digits, find the circumference and the area of the circle.

The circumference is ____ in.
The area is ____ in.

User RussF
by
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1 Answer

4 votes

Answer:

The circumference is 24.69 in.

The area is 48.52 in.

Explanation:

  • Circumference rule => Cf=2πr

So, Cf=2π(3.93)=24.69in

  • Area rule => A=πr^2

So, A=π(3.93)^2=48.52in

User Carl Smith
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