Mathematics
A semi-circular lamina of radius 35 cm is folded so that the two bounding radii are joined together to form a cone. Find :
(i) the radius of the cone.
(ii) the (lateral) surface area of the cone.
Related Questions
The volume of a right circular cone is 9856 cm3 and the area of its base is 616 cm2. Find
(i) the slant height of the cone.
(ii) total surface area of the cone.
A right triangle with sides 6 cm, 8 cm and 10 cm is revolved about the side 8 cm. Find the volume and the curved surface of the cone so formed. (Take π = 3.14)
The perimeter of the base of a cone is 44 cm and the slant height is 25 cm. Find the volume and the curved surface of the cone.