Question

Find the surface area of a sphere with a radius of 8cm.

Answer 1

The answer is B 803.8cm^2

Answer 2

By definition, the surface area of a sphere is given by:

$A = 4 * \pi * r ^ 2$

Where,

r: sphere radius

Substituting values in the given equation we have:

$A = 4 * 3.14 * 8 ^ 2$

Doing the calculations we have:

$A = 803.84$

Rounding to the nearest tenth:

$A = 803.8 cm ^ 2$

Answer:

The surface area of a sphere with a radius of 8cm is:

B. 803.8 cm ^ 2