Solve the problem.
-The area of a circle is $81 \pi$ square meters. Find its radius.

Name: Solve the problem. -The area of a circle is $81 \pi$ square meters. Find its radius.
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Question

Quizplus · Accepted Answer

The area of a circle is given by the formula $A = \pi r^2$, where $A$ is the area and $r$ is the radius. To find the radius, we can rearrange the formula to $r = \sqrt{\frac{A}{\pi}}$. Substituting the given area of $81 \pi$ square meters, we get $r = \sqrt{\frac{81 \pi}{\pi}} = 9$ meters.

Solve the Problem 81π81 \pi81π Square Meters 8 m8 \mathrm {~m}8 m B) 9 m9 \mathrm {~m}9 m

Solve the Problem $81 \pi$ Square Meters $8 \mathrm {~m}$ B) $9 \mathrm {~m}$