Answer:
Option (b) is correct.
The lateral area for the given cylinder is
square units
Explanation:
Given: A cylinder with radius 6 units and height 20 units.
We have to fine the lateral area for the cylinder with the given measurement.
The lateral area for the cylinder is given by

Put r = 6, h = 20
We have,
The lateral area for the given cylinder =

Simplify, we have,
The lateral area for the given cylinder =
square units