Question

please tell step by step

Answer 1

Answer:

a)AB||DC and AC is transversal

<BAC=<DCA(alt. int. angle)

b.In Traingle ABC and DCA,

AB=DC(given)

<BAC=<DCA(proved above)

AC=AC(common)

Triangle ABC is congruent to triangle DCA by SAS.

c)AB=CD

BC=DA

AC=CA