The perimeter of the base of a right circular cylinder is 44 cm and its height is 8 cm. Then, volume of the cylinder is : (Take π = 22/7)किसी लम्बवृत्तीय बेलन के आधार का परिमाप 44 सेमी है तथा ऊँचाई 8 सेमी है, तब इस बेलन का आयतन है : (π = 22/7 लीजिए)
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Correct answer: B. 1232 cm³1232 सेमी³
Explanation
2πr = 44, so r = 44 × 7/(2 × 22) = 7 cm. Volume = πr²h = (22/7) × 7 × 7 × 8 = 22 × 7 × 8 = 1232 cm³.2πr = 44, अतः r = 44 × 7/(2 × 22) = 7 सेमी। आयतन = πr²h = (22/7) × 7 × 7 × 8 = 22 × 7 × 8 = 1232 सेमी³।More Mathematics & Numerical Ability questions
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