ABCD is a parallelogram. X is the mid point of AD and Y is the mid point of BC. Prove that AYCX is a parallelogram
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Step-by-step explanation:
In triangle AXY and triangle CYX,
AX=CY(X is midpoint of AD and Y is midpoint of BC).
XY=XY(Common side).
Angle XAY=Angle YCX(AY is bisector of angle A and CX is bisector of angle C).
Therefore, Triangle AXY congruent to triangleCYX.
There fore, angle YXA=angle CYX(by CPCT).
and angle AYX=angleCXY(by CPCT) .
Therefore,AY//CX.
and AX//CY.
therefore, AYCX is a parallelogram
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