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.
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.