Question

EXPLAIN BRIFLY THE PROCESS OF ANSWER.​

Answer 1

Answer:

Step-by-step explanation:

Join AC

In ΔADC & ΔABC

AD // BC and AC is transversal.

DAC = BCA    {alternate interior angles}

AC = CA   {Common}

DC // AB and Ac is transversal.

DCA = BAC   {alternate interior angles}

ΔADC ≅ ΔABC     {A S A congruent}

∠ADC = ∠ABC      {CPCT}

Answer 2

Answer:

as we know that all the sides are parallel it means that it is an parallelogram

and in an parallelogram opposite angles of opposite sides are equal (theorem)

so here is an simple answer

Step-by-step explanation:

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