Question

find the volume and the total surface area of a hemisphere of radius 2.5cm​

Answer 1

Step-by-step explanation:

Volume of the hemisphere = (2/3)πr3 Radius of the hemisphere (r) = 3.5 cm Volume = (2/3) x (22/7) x (3.5)3 = 89.83 cm3 Total surfacae area of the hemisphere = 3πr2 = 3 (22/7) x (3.5)2 = 115.5 cm2.