Question

B. C If m2A = 50, mZB 130, and mZC = 50 is ABCD a parallelogram? A

Answer 1

We know that

`\begin{gathered} m\angle A=50 \\ m\angle B=130 \\ m\angle C=50 \end{gathered}`

We know that all interior angles of a parallelogram sum 360°. Also, opposite interior angles must be congruent.

Having said that, we can deduct that ABCD is not a parallelogram because all interior angles do not sum 360°.