
Concept explainers
The process by which Kyle can confirm that the end zone is the regulation size and it is also a rectangle using only tape measure.

Answer to Problem 38PPS
To confirm, find the length of each side of the end zone and then also calculate the distance between the opposite corners of the end zone with the help of tape.
If after measuring, the lengths of opposite sides of the end zone are equal and if the lengths of both diagonals are same, then the end zone is a rectangle.
Explanation of Solution
Given:
Kyle has to paint football practice field.
He has finished painting the end zone.
Calculation:
The measurement of the end zone on a football field is 160 feet in width and 30 feet in length.
To confirm, find the length of each side of the end zone and then also calculate the distance between the opposite corners of the end zone with the help of tape.
If after measuring, the lengths of opposite sides of the end zone are equal and if the lengths of both diagonals are same, then the end zone is a rectangle.
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