Pre-Algebra Examples

Find the Square or Rectangle Perimeter (1,4) , (2,7) , (0,5)
, ,
Step 1
The distances between the given points are the length (l), width (w), and diagonal (d).
The distance between the three corners is:
and
and
and
Step 2
The diagonal is the longest distance and the width is the shortest distance, which means and .
Step 3
The perimeter of a rectangle is .
Step 4
In this case, the perimeter is . Add the length and the width of the rectangle then multiply the answer by .
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Step 4.1
Remove parentheses.
Step 4.2
Simplify .
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Step 4.2.1
Add and .
Step 4.2.2
Multiply by .
Step 5