Question

if the lateral surface of cylinder is 94.2 CM square and its height is 5 cm then find its volume use pai =3.14​

Answer 1

Given, h=5cm

⇒Let radius =r

(i) Curved Surface Area

⇒94.2cm2

=2πrh

⇒94.2 cm2

=2×3.14×r×5cm

⇒r=3cm

(ii) Volume of cylinder

⇒πr2

h=3.14×3×3×5

=141.2cm3