Question

The CSA of a hemisphere of radius 28 cm would be *

Answer 1

Step-by-step explanation:

radius of hemisphere = 28 cm

curved surface area of hemisphere =

$2\pi \: r {}^{2}$

=

$2 \times \frac{22}{7} \times 28 \times 28$

=

$4928 \: cm {}^{2}$

Answer 2

Answer:

Step-by-step explanation:

Surface area of the hemisphere =2πr

2

Diameter = Radius ×2

Radius =14 cm

=2×

7

22

​

×14

2

=1232cm

2