Question

5.
(11) Find the volume of air in an empty room 5 m long, 4 m wide and 3 m high.​

Answer 1

Given -

• Length of room = 5m

• Breadth = 4m

• Height = 3m

To find -

• Volume of air in the empty room.

Solution -

In this question, we are given 3 dimensions, length, breadth and height, that means, the room is in the shape of cuboid. We need to find volume of air, so the answer will be like this -

Volume of room = Volume of air

Now,

Volume of room = L × B × H

where -

L = Length

B = Breadth

H = Height

On substituting the values -

Volume = L × B × H

$\longmapsto$ Volume = 5m × 4m × 3m

$\longmapsto$ Volume = 60m³

$\therefore$ Volume of air in an empty room is 60m³.

More formule -

1. Lateral/curved surface area = 2h(l + b)

2. Total surface area = 2(lb + bh + hl)

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Answer 2

Answer:

★ǫᴜᴇsᴛɪᴏɴ★

• Find the volume of air in an empty room 5 m long, 4 m wide and 3 m high.

★ANSWER★

Given : -

• Length of room = 5m

• Breadth of room = 4m

• Height of room = 3m

To find : -

• Volume of air in the room.

Formula's Used:-

● Volume of room, V = L × B × H

where symbols have the meaning,

• L = Length of room
• B = Breadth of room
• H = Height of room

Solution : -

Length of room, L = 5 m

Breadth of room, B = 4 m

Height of room, H= 3 m

★ Now, Volume of air in the room = L × B × H

On making use of the values of L, B, H in the formula, we get

Volume of air in room, V = 5 × 4 × 3

$\small \bf Volume = 60 \: m³$

$\bf \implies  Volume \: of \: air \: in \: a \: room \: is  \: 60 \: m³$

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