Question

We can use the formular-

12.6
to relate a ball's surface area S (in square Inches) to its radius r (in inches). Suppose a ball has a surface area of 226.8
square Inches. What is its radius?
Round your answer to the nearest tenth

Answer 1

r = 4.24 inches

Explanation:

Given that,

The surface area of the ball, A = 226.8 sq inches

The formula for the surface area of a sphere is given by :

`A=4\pi r^2`

Where

r is the radius of the ball

`r=\sqrt{(A)/(4\pi)} \\\\r=\sqrt{(226.8)/(4\pi)} \\\\r=4.24\ inch`

So, the radius of the ball is 4.24 inches.