Find the total surface area of a right circular cone with radius 6 cm and height 8 cm.
Radius of right circular cone (r) = 6
Height of cone ( h) = 8 cm
∴ slant height (l) = = l ==10 cm
Total surface area of cone = πr2+ πrl= πr(r+l)
= ×6×16 cm2=301.71 cm2