Question

Find the volume curved surface area and total surface area of a hemisphere of radius 10.5 cm

Answer 1

radius is 10.5 cm

Volume of a hemisphere = 2/3πr^3
= 2/3 * 22/7 * (10.5 )
=2,425.5cm ^3


Curved surface area of a hemisphere = 2πr^2
= 2*22/7*(10.5)^2
=693 cm^2


Total surface area of a hemisphere = 3πr^2
= 3*22/7*(10.5)^2
= 1,039.5cm^2

Answer 2

Answer:hope it is helpful

radius is 10.5 cm

Volume of a hemisphere = 2/3πr^3

= 2/3 * 22/7 * (10.5 )

=2,425.5cm ^3

Curved surface area of a hemisphere = 2πr^2

= 2*22/7*(10.5)^2