the volume of a right circular cone is 100 π cm³ and height is 12cm, then let us write by calculating the slant height of the cone.
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Step-by-step explanation:
Volume = (1/3)πr2h
According to the question,
(1/3)πr2h = 100π
⇒ (1/3)πr2 x 12 = 100π
⇒ r2 = 25
∴ r = √25 = 5 cm
∴ Slant height (l) = √h2 + r2
= √122 + 52
= √169 = 13 cm
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