Math, asked by ravikumar4094, 1 year ago

find [i] C.S.A [ii] T.S.A of a hemisphere of radius 21cm

Answers

Answered by shirikavi

5

here is your answer hope it will help you

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Answered by kiki9876

5

Answer:4158 cm^2 and 2772 cm^2

Step-by-step explanation:

Radius of hemisphere=21 cm

Curved surface area=2Πr^2=2×22/7×21×21

=2772 cm^2

Total surface area=3Πr^2

=3×22/7×21×21

=4158 cm^2

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