SOLUTION: Line PR is a diagonal of rectangle PQRS. PQ is 28ft and PR is 35ft. Find the length of line QR.

Algebra ->  Parallelograms -> SOLUTION: Line PR is a diagonal of rectangle PQRS. PQ is 28ft and PR is 35ft. Find the length of line QR.      Log On


   

Question 810306: Line PR is a diagonal of rectangle PQRS. PQ is 28ft and PR is 35ft. Find the length of line QR.
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
clearly triangel PQR is in the 3-4-5right triangle family so...
3 - 4 - 5
x - 28 - 35


so x=21