Question

Find the volume of air in a room measuring 4 m by 5 m which is 3 m high.​

Answer 1

Answer :

• Volume of air = 60m³

Given :

• Volume of air in a room measuring 4m by 5m which is 3m high

To find :

• Volume of air

Solution :

Volume of the air is the Volume of cuboid

Here,

• Length = 4m
• Breadth = 5m
• Height = 3m

We know that

• Volume of air = lbh

Where,

• l is length
• b is breadth
• h is height

Substituting the value :

➟ Volume of air = lbh

➟ Volume of air = 4 × 5 × 3

➟ Volume of air = 20 × 3

➟ Volume of air = 60m³

Hence , Volume of air = 60m³

More Explanation :

• Lateral surface area of cuboid = 2h(l + b)
• Total surface area of cuboid = 2(lb + bh + hl)
• Diagonal of cuboid = √(l² + b² + h²)
• Perimeter of cuboid = 4(l + b + h)

Answer 2

Answer:

Given :-

• A room whose measuring is 4 m by 5 m which is 3 m high.

To Find :-

• What is the volume of air in a room.

Formula Used :-

$\clubsuit$ Volume of Cuboid Formula :

$\mapsto \sf\boxed{\bold{\pink{Volume_{(Cuboid)} =\: Length \times Width \times Height}}}$

Solution :-

Given :

$\bigstar\: \: \rm{\bold{Length =\: 4\: m}}$

$\bigstar\: \: \rm{\bold{Width\: or\: Breadth =\: 5\: m}}$

$\bigstar\: \: \rm{\bold{Height =\: 3\: m}}$

According to the question by using the formula we get,

$\longrightarrow \sf Volume_{(Air)} =\: 4\: m \times 5\: m \times 3\: m$

$\longrightarrow \sf Volume_{(Air)} =\: 4\: m \times 15\: m^2$

$\longrightarrow \sf Volume_{(Air)} =\: 60\: m^3$

$\longrightarrow \sf\bold{\red{Volume_{(Air)} =\: 60\: m^3}}$

$\therefore$ The volume of air in a room is 60 m³.