Question

The area of a circle is 153.86 square meters. What is the diameter of the circle? Use 3.14 for π.

Answer 1

14 meters²

Explanation:

Since the formula to find the diameter is d = 2r, we need to first find the radius, which can be r = square root of Aπ over π if we take the formula for the area of a circle and isolate the radius. After simplifying r = square root of 153.86π over π to 7 and multiplying that by 2, we get the circle's diameter of 14 meters. Hope this helps!

Answer 2

Explanation:

A = πr^2

(153.86) = (3.14) r^2

Divide 3.14 on both sides.

49 = r^2

Square root both sides.

7 = r

D = 2r

D = 2(7)

D = 14

The diameter of the circle is 14 square meters.