Question

Find the area of a circle circumscribed about an equilateral triangle whose side is 18 inches long.

i think the answer is 108 pi
correct me if im wrong?

Answer 1

you are correct!

Answer 2

to find the Circle's area, you need to use this formula
\[\pi r^2 = \pi L^2/3\]

Answer 3

if you want to solve the radius, use the 30-60-90 rule. I'm sure you already know what the radius should look like.