2 Answers

Rick Deckard · Answer 1 · 2017-01-03T11:31:39+0000

Answer:

The surface area of the ball is
$4\pi\ ft^(2)$

Explanation:

we know that

The surface area of a sphere ( a ball) is equal to

$SA=4\pi r^(2)$

In this problem we have

$r=1\ ft$

substitute

$SA=4\pi (1^(2))=4\pi\ ft^(2)$

Jmagin · Answer 2 · 2017-01-05T08:34:36+0000

The surface area of any sphere is 4 π (radius)².

When the radius is 1 ft, the surface area is

4 π (1 ft)² = 4π ft² .

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