Question

give answer with all statements fromthe picture​

Answer 1

In ∆ADC

AD = DC

£DAC = £DCA → eqn.1.

( Angle opposite to equal sides )

In ∆ ABC

AB = BC

£BAC = £BCA → eqn.2.

Now ,

Adding eqn.1. and eqn.2.

£DAC + £BAC = £DCA + £BCA

£DAB = £DCB

Therefore , £A = £C

Answer 2

Step-by-step explanation:

Construction:

draw AC diagonal to ABCD

given:

AD=CD

AB=CB

To Prove:

angle A=C

Proof:

angle DAC=DCA. (AD=CD). (1)

angle BAC=BCA. (AB=CB). (2)

DAC+BAC=DCA+BCA. (from (1) &(2))

A = C