+0

# help geometry

0
54
1

A sector of a circle has a central angle of 80 degrees. If the area of the sector is 35pi, what is the radius of the circle?

Dec 8, 2021

#1
+13025
+1

What is the radius of the circle?

Hello Guest!

$$A=\pi r^2\cdot \frac{80°}{360°}\\ 35\pi =\pi r^2\cdot \frac{80°}{360°}\\ r=\sqrt{\frac{35\cdot 360}{80}}$$

$$r=12.55$$

!

Dec 8, 2021