The radius and height of a cylinder are in the ratio 4 : 7 and its volume is 2816 cm3. Find its radius. (Take π = 22/7)
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 8 cm
Volume of the cylinder = πr2h
22/7 × 4x × 4x × 7x = 2816.
x3 = 8
x = 2.
Radius = 4x = 4 × 2 = 8 cm.