Math, asked by pallu21171, 7 months ago

Find the total surface area of hemisphere whose diameter is 21cm

Answers

Answered by vedant1426

0

Step-by-step explanation:

tsa of hemisphere =3πr^2

d=21 therefore r=21/2

tsa=3×3.14×10.5×10.5

=9.42×10.5×10.5

=1038.55sq.cm

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