The circumference of the base of a right circular cylinder is 62.8 cm and its volume is 8792cm2, What is the curved surface area (in cm2) of the cylinder? (Take π = 3.14)
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 1758.4
Circumference of cylinder = 62.8 cm
The volume of cylinder = 8792 cm2
Circumference of the circular base (C) = 2πr
r = C/2π
Substituting the values -
r = 62.8/2(3.14) = 10 cm
Volume = πr2h
Curved surface area = 2(Volume/Radius) = 2(8792/10) = 1758.4 cm2