Question

answer me fast




If the radius of the base

of a right circular cone is 'r' and its vertical height is '2r', then the slant height of it is​

Answer 1

Answer:

slant height (l)=√h²+r²

therefore, l=√(2r)²+(r)²=√4r²+r²=√5r²=

$\sqrt{5} r$

hope it helps you ☺️