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Mathematics 10 Online
OpenStudy (anonymous):

Is the quadrilateral a parallelogram? Explain. The diagram is not to scale.

OpenStudy (anonymous):

OpenStudy (unklerhaukus):

well do you know that the sum of interior angles in a quadrilateral is 360°

OpenStudy (unklerhaukus):

this suggests that angleB is 50°

OpenStudy (unklerhaukus):

and a quadrilateral with opposite angles equal is a parallelogram

OpenStudy (anonymous):

Thank you! :)

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