Use relationships among diagonals of parallelograms.

Use relationships among diagonals of parallelograms.

Find the values of x and y in parallelogram PQRS.

PT=y,

TR=4x +1,

QT= 2y,

TS=5x +8

In parallelogram PQRS, diagonals PR and QS cross at point T.
Q P S R T

xequals=

and

yequal=