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Mathematics 20 Online
OpenStudy (princeevee):

b0rf

OpenStudy (yanasidlinskiy):

Oiiiii ;)

OpenStudy (princeevee):

OpenStudy (princeevee):

......

OpenStudy (mathmale):

Try figuring out the measure of angle ABD. If you know the right principle, you can determine ABD by inspection (no work needed).

OpenStudy (princeevee):

180?

OpenStudy (mathmale):

Angle ABD is definitely not 180 degrees. Please look at the diagram again and do some thinking. Note that lines AB and CD are parallel.

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