alleryਇੱਕ ਕੋਨ ਜਿਸਦਾ ਅਰਧ ਵਿਆਸ 7 cm ਹੈ, ਦਾ ਆਇਤਨ 154 cm³ (pi = 22/7) ਹੈ। ਇਸਦੀ ਉਚਾਈ ਕਿੰਨੀ ਹੈ?
A6 cm
B1 cm
C9 cm
D3 cm
Answer & Solution
Correct answer: D. 3 cm
(1/3)(22/7)(49)h = 154 ਤੋਂ ਸਾਨੂੰ (154/3)h = 154 ਮਿਲਦਾ ਹੈ, ਇਸ ਲਈ h = 3 ਸੈਂਟੀਮੀਟਰ।
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