Solve the problem. Approximate to the nearest tenth when necessary.
-The area of a circle is 65π square centimeters. Find the radius of the circle.
A) 14.3 cm
B) 65 cm
C) 4.5 cm
D) 8.1 cm

Question

Quizplus · Accepted Answer

The area of a circle is given by the formula A = πr^2, where A is the area and r is the radius. We are given that the area is 65π square centimeters, so we can set up the equation:
65π = πr^2
Dividing both sides by π, we get:
65 = r^2
Taking the square root of both sides, we get:
r = √65
Using a calculator or rounding to the nearest tenth, we get:
r ≈ 8.1
So the answer is D, 8.1 cm.

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