Question

find the CSC TSA and volume of a cylinder whose dimensions are study of the base 21 centimetre and height 9 CM​

Answer 1

Answer:

Step-by-step explanation:

CSA = πrh

=22/7×21×9

=22×3×9

=594 cm^2

TSA =πr(h+r)

=22/7×21(9+21)

=22×3×30

=1980 cm^2

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Answer 2

Volume of cylinder = pir2h
= 22/7 x 21 x21 x 9
=22x3x21x9
=22x3x189
=66x189
=12474cm3

CSA of cylinder = 2pirh
=2x22/7x21x9
=2x22x3x9
=44x27
=1188cm2


TSA of cylinder =2pir(r+h)
=2x22/7x21(21+9)
=44x3(30)
=44x90
=3960cm2


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