Calculate the height of a cone whose slant height is 25cm and curved
surface area is 550cm.
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Given :
- (i) Slant height = 25 cm,
- (ii) Curved surface area = 550 cm.
To find : Calculate the height of a cone.
We know that :
★ Curved surface area = πrl.
Calculations :
= (22/7) (r) 25 = 550
= 550 (r) = 550 (7)
= r = 7 cm
= √25² - 7²
= 24 cm
Therefore, 24 cm is the height of the cone.
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