Multiple choice

The formula of lateral surface area of cylinder is ________.

  1. $A = 2\pi r h$
  2. $A = 2\pi r$
  3. $A = \pi r^{2}$
  4. $A = 2\pi r^{2}h$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The lateral surface area of a cylinder is the area of the side, which is the circumference of the base (2*pi*r) multiplied by the height (h). Thus, A = 2*pi*r*h.

AI explanation

The lateral or curved surface area of a right circular cylinder is found by multiplying the circumference of the base by its height. Using the radius r and height h, the circumference is 2 * pi * r. Therefore, the formula for the lateral surface area is A = 2 * pi * r * h.

Keep practicing — related questions