a metal pipe is 77 cm long .the inner diameter of a cross section is 4 centimetre, the outer diameter is 4.4 cm .find inner curved surface area and Outer curved surface area
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Hi there,
Inner CSA= 2πrh
r = 1/2 of diameter.
r = 2 cm
Inner CSA = 2*22/7*2*77
= 968cm sq...
Outer CSA = 2πrh
R = 1/2 of diameter..
= 1/2 of 4.4
= 2.2
Outer CSA = 2*22/7*2.2*77
= 1064.8 cm sq
Hope it helps....
Thank you
Inner CSA= 2πrh
r = 1/2 of diameter.
r = 2 cm
Inner CSA = 2*22/7*2*77
= 968cm sq...
Outer CSA = 2πrh
R = 1/2 of diameter..
= 1/2 of 4.4
= 2.2
Outer CSA = 2*22/7*2.2*77
= 1064.8 cm sq
Hope it helps....
Thank you
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