Question

A dish has an area of 400 square inches. What is the length of the radius rounded to the nearest tenth of an inch?

Answer 1

11.3 inches

4th option

Explanation:

Area of a circular object = πr² where r = radius

Given area = 400 square inches,

πr² = 400 square inches

r² = 400/π

r = √(400/π)

r = 20/√π

= 11.3 inches rounded to one decimal place(tenth)