The length of a hall is 18 m and the width 12 m. The sum of the areas of the floor and the flat roof is equal to the sum of the areas of the four walls. Find the height of the hall.

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Solution

The hall is cubical.

Let,

Length of the cuboids

Breadth of the cuboids

Height of the cuboids

We have,

We need to find the Height of the hall

It is given that,

The sum of the areas of the floor and the flat roof is equal to the sum of the areas of the four walls

Using abbreviations, we can write the same as,

Height of the wall is .

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