Geometry: The diagonals of square PQRS intersect at T....

[josh90]

Hey, I have a geometry question:

The diagonals of square PQRS interesect at T. If PT = 2x + 6 and QS = 6x - 10, find the length of PR.

Would I do "2x + 6+x = 6x - 10"? If anyone can help that would be great. Thx.

 

[pka]

In a square the diagonals bisect each other and are congruent.
Hence, length of QS is twice the length PT.