Question

waht is the answer for the above question

Answer 1

CD =AB (given)
AD =BC (given)
AC =AC (common)

∆ABC~∆CDA

By SSS (Side side side)

Hence angle B =angle D

Answer 2

i)in triangle ABC and triangle ADC
AB=DC(given)
DA=CB(given)
AC=AC(common side)
hence, by SAS concurrency rule
triangle ABC is congurent to triangle ADC
ii)by cpct
angle B = angle D