Asked by Anonymous

The area of a circle is approximately 3.14 times the radius squared. WHich of the following expressions is a correct way to write this , if the radius is 3x ?

Answered by Ms. Sue
A = 3.14 * 3x^2

Answered by Steve
I think it would be better to write it as 3.14 * (3x)^2 = 3.14 * 9x^2
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