Question

Three cubes of side 30cm are joined end to end. find the volume of the cuboid so formed.​

Answer 1

Given,

Three cubes of side 30cm are joined end to end.

To find,

The volume of the cuboid.

Solution,

To find out the volume we have to follow a simple mathematical procedure.

The method of finding the volume begins with a simple step:

First, we have to find the length, height, and breadth of the cubes :

As the three cubes are mentioned,

The length will be 3 times the side.

⇒3×30=90cm.

The breadth will be 30cm.

The height will be 30 cm.

Now, we have to apply the formula of the surface area of cuboid,

The surface of the  cuboid is

⇒2(lb+bh+hl)

By applying the above formula, we can find out the volume of the cuboid

⇒2{(90×30)+(30×30)+(30×90)}

⇒2{(2700)+(900)+(2700)}

⇒2{6300}

⇒12600 cm²

Hence ,the volume of cuboid is 12600cm².