Question

In the given figue, ABCD is a parallelogram, if angl ECB=35° CF I AD CEI AB then find the value of x. ​

Answer 1

Answer:

∠AOB=2∠ACB=2×35=70

∘

ln ΔAOB⇒∠A=∠B

(Angles opposite to equal sides)

∴∠A+∠B+∠O=180

∘

2∠A+70

∘

=180

∘

∠A=55

∘

=∠OAB