d Problem8: A room has a rectangular floor that measures 28 feet by 14 feet and a flat 9-foot ceiling. what is the area of the floor and how much air does the room hold? | Job Exam Rare Mathematics (JEMrare) - Solved MCQs
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Problem8: A room has a rectangular floor that measures 28 feet by 14 feet and a flat 9-foot ceiling. what is the area of the floor and how much air does the room hold?

Problem8: A room has a rectangular floor that measures 28 feet by 14 feet and a flat 9-foot ceiling. what is the area of the floor and how much air does the room hold?

Solution:

As floor is rectangular and area of a rectangle is calculated by taking product of length and width !

Here,

Length of rectangular floor = 28 ft

Width of rectangular floor =14 ft

So,

\[ Area = Length \times Width=28\times 14=392 square ft \]

 

Now if consider ceiling height then the volume of the room will be calculated by taking product of length, width and height of ceiling.

So,

\[ Volume Of Room= Length\times Width\times Height =28\times 14\times 9=3528 cubic feet \]

So 3528 cubic feet of air is held by the room!

So, answer to both questions is there!

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