Radius and slant height of a solid right circular cone are 35cm and 37cm respectively. Find the curved surface area and total surface area of the cone. (Take π=227)
Let r and l be the radius and the slant height of the solid right circular cone respectively.
r=35cm,l=37cm
Curved Surface area, CSA=πrl=π(35)(37)
CSA=4070sq.cm
Total surface area, TSA=πr(l+r)
=227×35×(37+35)
Thus, TSA=7920sq.cm