Question

The lateral surface area of a cylinder is 94.2 cm² and its height is 5 cm .[Take π = 3.14]
Find :
(i) the radius of its base
(ii) its volume
May i have your intro​

Answer 1

Answer:

LSA=94.2 cm

2

For cylinder =

LSA=2nrh

∴2πr(5)=94.2

2×3.14×r×5=94.2

31.4×r=94.2

r=3 cm

∴ radius of base =3 cm

Volume of cylinder =πr

2

h

=3.14×(3)

2

×5

=3.14×9×5

=3.14×45

=141.3 cm

3

∴ Volume of cylinder =141.3 cm

2

hope it helps you!