The curved surface area of a hemisphere of diameter 28 cm is
1262 cm2
1232 cm2
1032 cm2
832 cm2
The total surface area of a hemispherical bowl of diameter 28 cm is
If the diameter of a cylinder is 28 cm and its height is 20 cm then its curved surface area is
(a) 880 cm2 (b) 1760 cm2 (c) 3520 cm2 (d) 2640 cm2