Question

Find the surface area of an orange with a 3'' radius. 24 sq. in. 36 sq. in. 144 sq. in.

Answer 1

The surface of orange is 36π square inches.

Explanation:

Given :An orange with a 3'' radius.

We have to find the surface area of orange with radius 3 inches.

Since, the orange is in shape of sphere.

So, Surface of area of orange is same as surface area of sphere.

We know,

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

Given : radius= 3 inches

Surface area of orange =
`4\pi\cdot (3)^2`

Surface area of orange =
`4\pi\cdot 9=36\pi`

Thus, The surface of orange is 36π square inches.

Answer 2

Area of sphere is given by:
Area=4πr²
but:
r=3 inches
thus
Area=4×π×3²
Area=36 π in²
Answer: 36π sq. in