Question

the volume and curved surface area of cylinder are 1650 cm3 cube and 660 cm2respectively find the radius and height of the cylinder

Answer 1

Here is the solution:
Volume of cylinder = 1650 cm3
πr2h=1650 cm3 ...i
Curved surface area = 660 cm2 2πrh=660 cm3 ...ii
πr2h2πrh=1650660
⇒r=5 cmPut the value of r in equation
(i)227×52×h=1650
⇒h=1650×722×25=21 cm