Question

A solid brass sphere of radius 2.1 dm is converted into a right circular cylindrical rod of length 7cm. The ratio of total surface areas of the rod to the sphere is

A) 3:1 B) 1:3 C) 7:3 D) 3:7

Answer 1

Step-by-step explanation:

Given :-

• A solid brass sphere of radius 2.1 dm is converted into
• a right circular cylindrical rod of length 7cm.

To Find :-

• The ratio of total surface areas of the rod to the sphere is

Answer is D) 3:7