Question

A glass in the form of a right circular cylinder is half full of water. Its base radius is 3 cm and height is 8 cm the volume of water is
a) 18πcm^3
b) 36πcm^3
c) 9πcm^3
d) 36 cm^3




Plz answer it fast...............
With explanation........​

Answer 1

Answer:

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Answer 2

Given:

A glass in the form of a right circular cylinder is half full of water. Its base radius is 3 cm and its height is 8 cm.

To find:

The volume of water.

Solution:

As given,

We have,

The radius of the glass = 3 cm

The height of the glass = 8 cm

Also,

The glass is in the form of a right circular cylinder, so,

The volume of glass

$= \pi \: {r}^{2} h$

$= \pi \: \times {3}^{2} \times 8$

$= 72 \pi \: {cm}^{3}$

Now,

The glass is half full of water,

This means,

The volume of water

$= \frac{1}{2} \times \: volume \: of \: glass$

$= \frac{1}{2} \: \times 72 \pi$

$= 36 \pi \: {cm}^{3}$

Hence, the volume of water is b) 36πcm^3.