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प्रश्न
Find the height of the cylinder whose volume is 1.54 m3 and diameter of the base is 140 cm?
उत्तर
We have, volume of the cylinder
= 1.54 m3
= 1.54 × 106 cm3
Diameter = 140 cm, Radius= 140 ÷ 2 = 70 cm
∵ volume of the cylinder = πr2h
= 1.54 × 106 = `22/7 xx (70)^2 xx h`
= `(1.54xx10^6xx7)/(22xx70xx70) xx h`
= 100 cm = h
∴ The height of the cylinder is 100 cm.
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