Question

Q4). Find the surface area of a sphere whose radius is 8cm?
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Answer 1

We need to recall the following formula for the surface area of a sphere.

• The surface area of a sphere $=4\pi r^{2}$

This problem is about the surface area of a sphere.

Given:

Radius $=8$ cm

From the formula of surface area, we get

$S=4\pi (8)^{2}$

$S=4*3.14 *64$

$S=803.84$  $cm^{2}$

Hence, the surface area of the sphere is $803.84$ $cm^{2}$ .