Question

Find the curved and surface area of the cylinder whose base has radius 21cm and hieght 28cm

Answer 1

CSA OF CYLINDER =2PIE×R×H
TSA=PIE×H {R+r)

Answer 2

TSA of cylinder = 2× pie × r × h + 2 ×pie × r^2

==> 2 × 22/7 × 21 × 28 Sq. cm
==> 3696 Sq .cm + 2772 Sq. cm

==> 6468 Sq. cm

Thanks
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