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50 Points! Multiple choice geometry question. Photo attached. Thank you!

50 Points! Multiple choice geometry question. Photo attached. Thank you!-example-1

2 Answers

4 votes

Answer:

A.) 5541.8

Explanation:

answered
User Swmfg
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8.0k points
1 vote

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.

answered
User Kushagr Arora
by
7.7k points

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