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A dog runs 91 meters from one corner of a rectangular park to the opposite corner. If the length of the park is 84 meters, what is the width?

 i am not sure how to do this so please help.

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Kemal G. | Patient and Knowledgeable Math and Science Tutor with PhDPatient and Knowledgeable Math and Scien...
4.8 4.8 (5 lesson ratings) (5)
Hi Fnskj,
This is a simple case of the Pythagorean theorem. The diagonal represents the hypotenuse.
Long side is 84 meters. So finding the width is trivial if you plug in the numbers in the formula.
Remember the Pythagorean theorem states that
Hypotenuse^2 = adjacent^2 + opposite^2
91^2 = 84^2 + w^2  (we call width w)
w = 35