Question

Find the surface area of a sphere with a radius of 5 cm. Approximate pi as 3.14 and round your answer to the nearest hundredth.

Answer 1

5^2*3.14*4=314, because the formula is 4pi*radius^2.

Answer 2

the surface area of a sphere with a radius of 5 cm is 314 cm^2

Explanation:

the surface area of a sphere with a radius of 5 cm

Surface area of a sphere formula =
`4\pi r^2`

where 'r' is the radius of the sphere

r= 5cm

Surface area of a sphere =
`4\pi (5)^2`

The value of pi = 3.14

Surface area of a sphere =4*3.14 * 25 = 314

the surface area of a sphere with a radius of 5 cm is 314 cm^2