If the lateral surface area of a right circular cylinder is equal to twice the area of its base, find the height in terms of the radius.
Show answer & explanation
Correct answer: A
Explanation
Given:
Lateral surface area of a cylinder = 2 times the area of the base
By the formula:
Lateral surface area = 2πrh
Area of the base = πr²
2πrh = 2 × πr²
h = r