Question

The lateral surface area of a right circular cylinder of radius 3 cm is 94.2 cm square. Its height is? ​

Answer 1

Given that

Lateral surface area of cylinder is

$94.2 {cm}^{2}$

Radius of cylinder is 3cm

To find

Height of cylinder

Solution

Let

r is radius of cylinder

a is lateral surface area of cylinder

h is height of cylinder

As we know that

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

we get

$94.2 = 2 \times \frac{22}{7} \times 3 \times h$

By multiplication we get

$94.2 = \frac{132}{7} \times h$

Swap the value from Left hand side to right hand side we get

$h = \frac{94.2 \times 7}{132}$

by multiplication and division we get

$h = 4.9954cm$

hence

Height of cylinder is 4.9954cm.

Answer 2

Answer:

4.5 is the height

Step-by-step explanation:

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