Question

ABCD is a quadrilateral in which AB II DC and AD II BC find b,c and d​

Answer 1

Answer:

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Answer 2

Answer:

Angle B= 130°

Angle C= 50°

Angle D= 130°

Step-by-step explanation:

It is given that AB // DC.

Let's take AD as transversal.

Now, Angle A + Angle D = 180° (Angles on the same side of the transversal are supplementary)

50° + Angle D = 180°

Angle D = 180° - 50°

Angle D = 130°

Now, It is given that AB // DC and AD // BC.

Because opposite sides are parallel,

ABCD is a parallelogram.

Now, In a parallelogram, Opposite Angles are Equal.

Therefore, Angle A = Angle C = 50°

Angle D = Angle B = 130°.

Hope this will help you.