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Art [367]
2 years ago
15

A sphere has a radius of 5 ft.

Mathematics
2 answers:
leva [86]2 years ago
8 0

Answer:

B. 100π

Step-by-step explanation:

The surface area of a sphere is given by

SA = 4 pi r^2

The radius is 5

SA = 4 * pi * r^2

SA = 4 * pi * 25

SA = 100 pi

Tema [17]2 years ago
7 0

Answer:

B. 100π

Step-by-step explanation:

<u>Given</u><u> </u><u>:</u><u>-</u><u> </u>

Radius of sphere :- 5 ft.

We need to find surface area of sphere.

<h3>let's solve.</h3>

First we use formula

Surface Area of sphere :- 4πr²

And we have give radius that is 5.

let's put the value of radius in formula.

Surface Area of sphere :- 4 × π × <u>( 5 )²</u>

Now , solve these we will get.

surface Area of sphere = <u>4</u> × π × <u>25</u>

multiply both numbers

Hence, We get

Surface Area of sphere :- 100 π

Therefore option B. 100π is correct.

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<em />

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<em> </em>

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