Question 306662: A cone has a radius 17 in. Long and a slant height 20in long find the surface area to the nearest tenth. Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! surface area of cone = pir(r+s) where r is the radius and s the slant height
radius =17 inch
slant height = 20 inch
3.14*17*(17+20)
= 1976.06 sq. in