Question

What is the surface area of a sphere with a diameter of 12 centimeters? (Use 3.14 for π .) 1,808.64 cm 2 452.16 cm 2 150.72 cm 2 301.44 cm 2

Answer 1

Answer: The surface area is,

$452.16\text{ square cm}$

Step-by-step explanation:

We know that,

The surface area of a sphere is,

$A=4\pi (r)^2$

Where, r is the radius of the sphere,

Given,

The diameter of the sphere = 12 cm,

So, the radius of the sphere,

$r= \frac{Diameter}{2}= \frac{12}{2} = 6\text{ cm}$,

Hence, the surface area of the given sphere is,

$A=4\pi (6)^2$

$=4\times 3.14\times 36$  ( $\pi$ = 3.14 )

$=452.16\text{ square cm}$

Answer 2

Sphere Surface Area = PI * diameter²
Sphere Surface Area = 3.14 * 12*12
Sphere Surface Area = 452.16 square centimeters