Question

I have a geometry question about parallelograms. (Refer to diagram..)

Answer 1

If angle 1=y+10 and angle 2=3y and angle 3=1/2y+15 what is Y?
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Angle DEC= y/4 and angle ECK=(y+60)/2 what is y?
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If DE=x+y, EC=12, CK=2x-y, and KD-3x-2y then x=____ and y=____
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If angle 1=4x and angle 2=3x and angle 3= x^2-60, then x=___ and y=____ And Angle CED= _______

HELP I JUST REALLY DON'T UNDERSTAND THESE. :( :( Thanks!

Answer 2

Is angle 3 CET or CED

Answer 3

CET

Answer 4

look for alternate angles

Answer 5

Aren't angle 1 and angle 3 alternate interior angles? So what relationship would they have with each other?

Answer 6

Are they equal?

Answer 7

Yes. So can u set up an equation where angle 1=angle 3 and then solve for Y