Question

Find the lateral surface area of a

cylinder whose radius is 1.2 mm and
whose height is 2 mm.
Round to the nearest tenth.

Answer 1

15.1 mm²

Explanation:

Lateral surface area of a cylinder = 2πrh

(where r is the radius and h is the height)

Given:

• r = 1.2 mm
• h = 2 mm

Substitute given values into the formula:

⇒ Lateral surface area = 2π(1.2)(2)

= 4.8π

= 15.1 mm² (nearest tenth)