dbecker
Answered

What is the area of a circle with a radius of 21 cm? Use 3.14 for π and round your answer to the nearest hundredth.

Answer :

VivaciousLyla
Hello!

We must use a certain formula to find the area of a circle. The formula is:

A = pi * r^2

Since we already have the radius (21 cm) and we know what pi is (approximately 3.14), use the formula to solve:

A = 3.14 × 21^2

A = 3.14 × 441

A = 1,384.74


ANSWER:

The area of the circle is 1,384.74 centimetres squared.




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