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

Question

3 years ago

6

nly the number.

1 answer:

grin007 [14] · Answer 1 · 2022-05-28T22:17:37+03:00

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