2 Answers

Kushagr Arora · Answer 1 · 2024-06-29T16:47:22+0000

Answer:

A. 5541.8 cm²

Explanation:

The surface area of a sphere is given by the formula
$\boxed{\bold{SA = 4\pi r^2}}$ , where r is the radius of the sphere.

In this case, we know that the diameter ips 42 centimeters. This means that the radius is
r = (d)/(2) = (42)/(2) = 21 centimeters.

Substituting this into the formula, we get:

$SA = 4\pi (21)^2 = 1764\pi$

To the nearest tenth, this is 5541.8 square centimeters. Therefore, the surface area of the sphere is 5541.8 square centimeters.

Please log in or register to add a comment.