The outer diameter of a metallic pipe is 18cm and the tckness of the pipe is 2cm and the eght is 4cm find the surface area of the metallic pipe
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i hope you asked about the inner curved surface area
diameter of the inner side = 18-4
= 14cm
csa of cylinder = 2*22/7*7*4
= 176 cm^2
hope it is right
diameter of the inner side = 18-4
= 14cm
csa of cylinder = 2*22/7*7*4
= 176 cm^2
hope it is right
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