Algebra Examples

Find the Square or Rectangle Perimeter
, , ,
Every rectangle has three different pairs that have the same length. One pair contains the length , another pair contains the width , and the last pair contains the diagonal .
The distance between:
and is
and is
and is
and is
and is
and is
The distances between the points show that there are three different pairs that have the same length. One pair contains the length, another pair contains the width, and the last pair contains the diagonal. The diagonal is the longest distance and the width is the shortest distance, which means and .
The perimeter of a rectangle is .
In this case, the perimeter is . Add the length and the width of the rectangle then multiply the answer by to get .
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Add and to get .
Multiply by to get .
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