Question

verify that opposite angles of parallelogram are of equal measure by making two identical parallelogram with a thick coloured sheet and coloured paper class 8 pg number 48 ncert​

Answer 1

Answer

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)