22-02-2017
Mathematics

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help me please !!!!!!!

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Respuesta :

ChandrikaP ChandrikaP

22-02-2017

diagonals of a parallelogram bisect each other
or they intersect each other in the halfway

x+4=3y-11-------------------------equation1

2x-1=y-1-------------------------------equation2

mulitply equation 1 to 2

2x+8=6y-22-----------------------equation3

equation2 - equation3

-9=-5y +21
5y=30
y=6

then x= 3

now PT=2x-1=5
TR=y-1=5
ST=3y-11=7
TQ=x+4=3+4=7

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