Question

The radius of a cylinder is 10 cm and its curved surface area is 440 cm2 then its height is ________ cm.​

Answer 1

Step-by-step explanation:

Required height is 7 cm.

I hope it may be helpful.

Answer 2

Answer:

Height of cylinder is 10cm.

Step-by-step explanation:

Given that

Radius of cylinder is 10cm

Curved surface area is 440cm sq.

To find

Height of cylinder

Solution

Let

h as height of cylinder

r as radius of cylinder

a as curved surface area of cylinder

Now as we know that

$a = 2 \times \pi \times r \times h$

$440= 2 \times \pi \times 10 \times h$

now to find h

$h = \frac{440}{2 \times \pi \times 10}$

put

$\pi = 3.14$

we get

$h = \frac{440}{2 \times 3.14 \times 10}$

by multiplication and division we get

$h = 7cm$

Height of cylinder is 7cm.