The diameter of a circle is 21 cm. Find its area to the nearest whole number.

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asked Dec 13, 2024 38.0k views

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Anna Nevison · Answer 1 · 2024-12-19T08:09:23+0000

So the diameter of the circle is 21…

This means the radius has to be 21/2 which is approximately 10.5 cm. Using this, we know that the area of a circle is

A=pi(r²) where pi=3.14

so we have 3.14(10.5)²= 346 square centimeters

The diameter of a circle is 21 cm. Find its area to the nearest whole number.

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