The spheres are similar. The surface area of the blue sphere is 7854 square inches. What is the surface area of the red sphere? Round your answer to the nearest tenth.

Question

asked Mar 17, 2019 196k views

2 Answers

Higigig · Answer 1 · 2019-03-23T16:57:52+0000

Answer:

Surface area of red sphere is 1257 square inches.

Explanation:

Given : The surface area of the blue sphere is 7854 square inches.

We have to find the surface area of the red sphere.

Since , radius of red sphere is 10 inches

We know, Surface area of red sphere is
$4\pi r^2$

Put r = 10

We have,

Surface area of red sphere is
$4\pi (10)^2=400\pi$

Using π = 3.14 , we have,

Thus, Surface area of red sphere is 1257 square inches.