Question

if the lateral surface of a cylinder is 94.2cm² and its height is 5cm then what is the radius of its base and its volume (π=3.14)

Answer 1

hope this helps you ☺️

Answer 2

Lateral surface area of cylinder = 94.2 cm² (given)

height = 5 cm

Lateral surface area = 2πrh

=> 94.2 = 2 × 3.14 × r × 5

=> 94.2 = 31.4 × r

=> (94.2)÷(31.4) = r

=> 3 = r

radius = 3 cm

Now,

Volume = πr²h

= 3.14 × (3)² × 5

= 141.30 cm³