The area of a circle is 706.5 meters squared. What is the circle's radius?

15metre

Step-by-step explanation:

area= pie r^2

22/7×r^2=706.5

multiply both sides but the reciprocal

7/22× 22/7×r^2=706.5×7/22

r^2=224.8

find squareroot on both sides

r=14.99m or 15m

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

the correct answer is c) 2.