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Mathematics 9 Online
OpenStudy (theprofessor35):

Help please! :D

OpenStudy (theprofessor35):

I'm not sure how to solve!!

OpenStudy (theprofessor35):

How would I verify it, please explain!

OpenStudy (solomonzelman):

|dw:1456433981387:dw|

OpenStudy (sagewilson):

Every triangle has a degree of 180. Also if you were to add up the measurements of all the angles, 1,2 and 3 it would give you 180.

OpenStudy (solomonzelman):

Using paralellogram properties.

OpenStudy (theprofessor35):

I'm just not understanding any of this...why did u add that extra triangle? @SolomonZelman

OpenStudy (solomonzelman):

I will try to explain what I did.

OpenStudy (michele_laino):

hint: please look at this drawing: |dw:1456433987947:dw|

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