question_answer

Find the total surface area of a hemispherical bowl whose outer radius is 12 cm and inner radius is 5 cm.

A) 258 \[\pi \,c{{m}^{2}}\]             

B) 457 \[\pi \,c{{m}^{2}}\]

C) 338 \[\pi \,c{{m}^{2}}\]                       

D) 388 \[\pi \,c{{m}^{2}}\]

E) None of these