A right circular cylinder has height 20 cm and curved surface area 880 cm². What is its volume? (use π=22/7)
Show answer & explanation
Correct answer: B
Explanation
Curved surface area = 2πrh
880 = 2 × 22/7 × r × 20
880 = 880r/7
r = 7 cm
Volume = πr²h
= 22/7 × 7 × 7 × 20
= 3080 cubic cm