Question

If the curved surface oh a cylinder is 94.2cm2 and height is 5 cm then find the radius of its base and volume of cylinder

Answer 1

Answer:

Given , CSA of the cylinder is 94.2 cm²

Step-by-step explanation:

height of the cylinder is 5 cm

i.e. 2 π r h = 94.2

2 *22/7* r* 5= 94.2

r = 94.2*1/2*7/22*1/5

= 47.1 * 0.0636

= 2.99727

Hence r = 2.9972 approximately

Answer 2

Answer:

Radius of base =2.99cm (approx)

Volume of cylinder =140.48 cm^3(approx)

Step-by-step explanation:

csa of cylinder =94.2cm^2

2πrh= 94.2

R= 94.2×7

2×22×5

R= 32.97

11

R= 2.99 cm

volume of cylinder =πr^2h

=22×299×299×5

7×100×100

=983.411

7

= 140.48cm^3

Hope it will help you