Question

find the volume of a cylinder in litres whose curved surface area is 154 sq.m and height is 3.5m

Answer 1

Answer:

Step-by-step explanation:

CSA of cylinder=154msq

2πr2h=154

2×22/7×r2×3.5=154

r2=154×7/2×22×3.5

r2=7×5/5

r= √7m

Volume of cylinder=πr2h

=22/7×√7×√7×3.5

=22×3.5

=77mcube

=77×1000

=77000liter

Answer 2

csa of cylinder =154 msq

2×pie×r×h=154

2×22/7×r×3.5=154

44×.5=154

22=154

154/22=7

volume of cylinder = pie×r2×h

=22/7×49×3.5

=593

593 ×1000