Approximate to the nearest tenth when necessary.
-The area of a circle is 90 square meters. Find the radius of the circle.
A) $9.5 \mathrm{~m}$
B) $5.4 \mathrm{~m}$
C) $16.8 \mathrm{~m}$
D) $28.6 \mathrm{~m}$

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 given the area, we rearrange the formula to solve for $r$: $r = \sqrt{\frac{A}{\pi}}$. Substituting $A = 90$ square meters, we get $r = \sqrt{\frac{90}{\pi}} \approx 5.4$ meters.

Approximate to the Nearest Tenth When Necessary 9.5 m9.5 \mathrm{~m}9.5 m B) 5.4 m5.4 \mathrm{~m}5.4 m

Approximate to the Nearest Tenth When Necessary $9.5 \mathrm{~m}$ B) $5.4 \mathrm{~m}$