Question

derive slant height of cone

Answer 1

By applying the Pythagorean Theorem,

 the slant height is given by the formula:slant height=√r²+h²

where r is the base radius and h is the altitude.

Answer 2

formula to derive slant height of cone is -
${l}^{2} = {h}^{2} + {r}^{2}$