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30. किसी बेलन के आधार की त्रिज्या 2
cm तथा ऊँचाई 14 cm हो तो इसका
आयतन होगा
O 174 cm3
O 175 cm3
O 176 cm3
O O
177 cm3
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Given,
height (ऊंचाई) = 14 cm
radius (त्रिज्या) = 2 cm
volume (आयतन) = πr²h ( π × त्रिज्या ² × आयतन)
= 22/7 × 2² × 14
= 22/7 × 4 × 14
= 22 × 4 × 2
= 22 × 8
= 176 cm³
तो, तीसरा option 176 cm³ सही उत्तर है
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