Question

The slant height ' l ' of a cone of radius ' r ' and height ' h ' is
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Answer 1

Slant height of cone (l)=r2+h2 Them covered surface area of cone =πrl.

Answer 2

Answer:

slant height =

$l = \sqrt{ {h}^{2} + {r}^{2} }$

this is your answer the silent height formula is given below