Question

find total curved surface area of hemisphere of radius 21cm​

Answer 1

Step-by-step explanation:

the curved surface area of hemisphere=⅔πr²

=⅔×22/7×21²

=⅔×22/7×21×21

=2×22/7×7×21

=2×22×21

=44×21

=924

Answer 2

Answer:

2772 cm2

Step-by-step explanation:

surface area of Hemisphere= 2 π r2

=2×22/7×21×21

= 2772 cm^2

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