If the height and radius of a cone are 1.5 and 8cm then its slant height

Slant height ( l ^2) = h^2 + r^2

Height = 1.5 cm
radius = 8 cm
slant height =  √ radius² + height ²
                   =  √ 1.5² + 8²
                   =  √2.25+64
                   =√66.25
                   =8.13941029805
approx=8.14

Hope it helpfull!!!

L=√h²+r²
l=√2.25+64
l=√66.25
l=8.13941029805
approx=8.14

5years answer to do