Question

The cone of 24 cm has base diameter 14 cm find.:
The slant height of cone

Answer 1

Given Diameter of cone = 14 cm

Radius of cone (r) = Diameter ÷ 2 = 14 ÷ 2 = 7cm

Height of cone (h) = 24 cm

Now curved surface area of cone = πrl

where l is the slant height of cone

So to find the Curved surface area, we need to find slant height ( l )

which can be found by Pythagoras theorem

i.e.

=> l² = r² + h²

=> l² = 7² + 24 ²

=> l² =49 +576

=> l² = 625

=> l =√625

=> l = 25cm

Therefore curved surface area of cone =

πrl

=> 22/7× 7×25

=> 22× 25

=> 550 cm

____________________________

Answer 2

Answer:

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