Question

i) Find the curved surface area of each hemisphere

a) 400 cm2

b) 305 cm2

c) 308 cm2

d) 406 cm2​

Answer 1

Step-by-step explanation:

Answer

CSA=2πr2=2772cm2

=2×722×r2=2772

r2=2126×7

=63×7

r2=32×72

r=21cm

d=2r=42cm 

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