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प्रश्न
The curved surface area of a cylinder of height 14 cm is 88 cm2. Find the diameter of the base of the cylinder.
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उत्तर
Height (h) = 14 cm
Curved surface area (2πrh) = 88 cm2
Then, 2πrh = 88 cm2
⇒ `2 xx 22/7 xx r xx 14 = 88`cm2
⇒ 88r = 88
⇒ r = `88/88 = 1` cm
Then diameter = `1 xx 2 = 2` cm
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