Question

2.4. Prove that opposite sides of a parallelogram are equal.​

Answer 1

Answer: sorry dont know

Step-by-step explanation:

Answer 2

Step-by-step explanation:

R.E.F image

In triangle ADC and ABC,

∠DAC=∠ACB(AB∥CD and taking AC as transversal)

AC=AC (common)

∠DCA=∠BAC(AB∥CD taking AC as transversal)

By ASA criterion of concurrency triangle ADC is congruent to triangle ABC.

AD=BC (By CPCT)

AB=CD (By CPCT)