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प्रश्न
Find the height of the cone whose base radius is 5 cm and volume is 75π cm3.
उत्तर
Volume of cone = `1/3 xx (pir^2) xx h`
⇒ `75π = 1/3 xx π xx 5 xx 5 xx h`
⇒ h = `225/25`
⇒ h = 9 cm
Height of the cone = 9 cm
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