So let's begin! So the length is 25 and the entire perimeter is 106. Lets put these both of these numbers as information we know.
We know the length is 25. We know the full perimeter is 106. We also know a rectangle has 2 pairs of congruent sides.
Okay so, the length is 25. Since there are two sides that are the same we would multiply 25 by 2 to get 50.
Now we know 2 sides out of the four sides on a rectangle.
106 is the final perimeter, if we subtract 50 from 106, we get 56. That is the measurement for both sides we're missing but we need to know the width for just one side. So we divide 56 by 2 to get 28. The width is 28.
