Question

find csa tsa and volume of hemisphere whose radius is 21cm and hieght 7 cm​

Answer 1

Step-by-step explanation:

Curved Surface area of a hemisphere =2πr

2

=2×

7

22

×21×21=2772cm

2

Total surface area of a hemisphere =3πr

2

=3×

7

22

×21×21=4158cm

2