Question

Pls help me !!

a sector of a circle has a central angle measure of 90°, and an area of 7 square inches. what is the area of the entire circle?

area of the circle = __ square inches

Answer 1

Explanation:

area of circle - pie x r x r

22/7 x 7/2 x 7/2 ( 7 as diameter because it's straight line passing through centre)

77/2 is the sq inches