Question

A company makes plastic beach balls with a radius of 2 inches. how many square inches of plastic does the company need to make 10 beach balls? use 3.14 for pi and round to the nearest tenth. recall the formula s a = 4 pi r squared. 50.24 inches squared 100.5 inches squared 251.2 inches squared 502.4 inches squared

Answer 1

To make 10 beach balls with a radius of 2 inches, approximately 50.24 square inches of plastic are needed.

Step-by-step explanation:

To find the square inches of plastic needed to make 10 beach balls with a radius of 2 inches, we can use the formula for the surface area of a sphere: A = 4πr². Substituting the given radius of 2 inches into the formula, we get A = 4π(2)² = 4π(4) = 16π. To approximate this value to the nearest tenth, we can use the value of π as 3.14. Thus, approximately 16π = 16(3.14) = 50.24 square inches of plastic are needed to make 10 beach balls.