Question

- A sphere with radius r is divided into four equal parts. Then, the total surface area
of each of those parts is
A. 4πr^2
B. 3πr^2
C. πr^2
D. 2πr^2
​

Answer 1

Given:

A sphere with radius r is divided into four equal parts.

To Find:

the total surface area  of each of those parts

Solution:

Total surface area (TSA) of sphere = 4πr²

where 'r' is the radius of the sphere

When it is divided into 4 equal spheres,

TSA of each sphere = TSA of the original sphere/4 = (4πr²/4) = πr²

Hence, the total surface area  of each of those parts is πr²

Answer 2

c) πr²

hope it helps uh!

happy learning ☺️