Question

find the curved surface area of a cylinder whose radius of the base is 3.5cm and height 16cm

Answer 1

=2×pie×r×h. Sq units
=2×22÷7×3,5×16
=22×16
=352

Answer 2

2pi×r×h is csa
2×22/7×3.5×16
2×22×.5×16
704×0.5
=352
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