Find the area. Leave your answer in terms of pi.
-A circle with circumference $36 \pi \mathrm { m }$
A) $81 \pi \mathrm { m }$
B) $1296 \pi \mathrm { m }$
C) $144 \pi \mathrm { m }$
D) $324 \pi \mathrm { m }$

Question

Quizplus · Accepted Answer

The circumference of a circle is given by $2\pi r = 36\pi$. Solving for $r$, we get $r = 18$. The area is $\pi r^2 = \pi (18)^2 = 324\pi$.

Find the Area 36πm36 \pi \mathrm { m }36πm A) 81πm81 \pi \mathrm { m }81πm

Find the Area $36 \pi \mathrm { m }$ A) $81 \pi \mathrm { m }$