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Mathematics 9 Online
OpenStudy (anonymous):

I will give a medal a pic below What is the measure of angle 7?

OpenStudy (anonymous):

OpenStudy (tkhunny):

Same as Angle 6 Same as Angle 3 Same as Angle 2 You tell me the reasons.

OpenStudy (anonymous):

what ! i don't know more explonation please!

OpenStudy (tkhunny):

Parallel Lines cut by a transversal. This is the situation you have. Alternate interior angles are congruent. Generally, Vertical Angles are congruent. That is all you need.

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