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22 July, 06:51

A rectangular room is 6 6 meters longer than it is wide, and its perimeter is 28 28 meters. find the dimension of the room

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  1. 22 July, 08:28
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    We know that perimeter is equal to 2l+2w or l+l+w+w.

    We also know that the length is 6 meters longer than the width.

    Based on this we can create the following formula to find the dimensions:

    28 = (w+6) + (w+6) + w+w

    Then to solve, it's just simple algebra.

    First, combine like terms: 28 = w+w+w+w+6+6 28 = 4w+12

    The next thing we do is isolate the variable by subtracting 12 from each side: 28-12 = 4w+12-12 16 = 4w

    The next thing we do is divide both sides by the coefficient (4) : 16/4 = 4w/4

    And this gives us the answer that w=4.

    Now to find the dimensions:

    We know that the width is equal to 4.

    We also know that the length is equal to 6 more than the width. If the width is 4 then the length is 4+6 or 10.

    So there you have it, the dimensions of the room would be 4x10.
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