4. If the lateral surface of a cylinder is 94.2cm2 and its height is 5cm, then find
(i) radius of its base (ii) its volume.[Use π= 3.14]
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Step-by-step explanation:
Lateral surface area of a cylinder = 2πrh
94.2 cm² = 2 × 3.14 × r × 5
94.2 = 31.4 × r
r = 94.2 / 31.4
r = 3 cm
Volume of cylinder = πr²h
= 3.14 × 3 × 3 × 5
= 141.3 cm³
Hope it is helpful !
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