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प्रश्न
Volume of a cylinder of height 3 cm is a 48π. Radius of the cylinder is ______.
विकल्प
48 cm
16 cm
4 cm
24 cm
उत्तर
Volume of a cylinder of height 3 cm is a 48π. Radius of the cylinder is 4 cm.
Explanation:
Given Height of cylinder h = 3 cm
Volume of cylinder V = 48π
Let Radius of cylincier = r
V = πr2h
48π = πr2 × 3
r2 = `48/3`
= 16
r = `sqrt(16)`
= 4 cm
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