"The external and internal diameters of a hemispherical bowl are 10 cm and 8 cm r
Channel: Doubtnut
Date: 2020-04-05

"The external
 and internal diameters of a hemispherical bowl are 10 cm and 8 cm
 respectively. What is the total surface area of the bowl?
(a) 257.7 cm2 (b) 286 cm2 (c) 292 cm2 (d) 302 cm2"