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bezimeni [28]
3 years ago
6

What is the surface area, in square inches, of a sphere with a diameter of 8 in.? and round to the nearest whole number. Enter o

nly the number.
Mathematics
1 answer:
grin007 [14]3 years ago
3 0

Answer:

SA = 201 in^2

Step-by-step explanation:

The formula for surface area of a sphere is

SA = 4pi r^2

We know that the diameter is 8

To find the radius we cut the diameter in half.

r = d/2

r = 8/2 =4

Substitute in what we know.

SA = 4 *pi *4^2

    = 4*pi*16

   = 64*pi

Letting pi = 3.14

  = 200.96 in^2

We want to round to the nearest whole number

SA = 201 in^2

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