The base of pyramid is circular whose radius is 14cm and the slan
| The base of pyramid is circular whose radius is 14cm and the slant height is 20cm. Find the curved surface area of the cylinder ?
A. 870
B. 880
C. 860
D. 850
Please scroll down to see the correct answer and solution guide.
Right Answer is: B
SOLUTION
Given:
Radius = 14cm
Slant height = 20cm
Formula used:
The curved surface area of cylinder = 1/2 × base parameter × slant height
Calculations:
⇒ 1/2 × 2πr × 20
⇒ 22/7 × 14 × 20
⇒ 22 × 40
⇒ 880cm2
∴ The curved surface area of the cylinder is 880cm2.