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Label the vertices and all the elements needed. Find x. Give reasons!

Note: The lines are not parallel!

Label the vertices and all the elements needed. Find x. Give reasons! Note: The lines-example-1
User LStoilov
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Check the picture below.

so we have two alternate interior angles, of "x+x", and the straight line on the left-hand-side, so


2x+(90-x) + 2x ~~ = ~~180\implies 3x+90=180 \\\\\\ 3x=90\implies x=\cfrac{90}{3}\implies x=30^o

Label the vertices and all the elements needed. Find x. Give reasons! Note: The lines-example-1
User Amy G
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