Question

the diameter of the base of aright circular cylinder is 4.2 dm and it's height is 1 dm . find the area of the curved surface in cm sq.​

Answer 1

Answer:

1dm=10cm

So the height is 10cm and the diameter is 42cm.

Area of the curved surface of cylinder is 2πrh.

=2×(22/7)×21×10

=44×3×10

=1320 sq cm

Thanks for asking .

I hope this helps !!!