Question

If AB || CD ,find value of x.​

Answer 1

Answer:

Since, the lines are parallel

∠OCD=∠OAB

∠ODC=∠OBA

and

∠DOC=∠AOB (Vertically Opposite Angle)

Hence, △OCD∼△OBA

3x−1=5x−3⇒2x=2⇒x=1

Answer 2

Answer:

x = 22

Step-by-step explanation:

line AO and line OC forms linear pair.

AO + OC = 180

= 3x - 1 + 5x - 3 = 180

= 8x -4 = 180

= 8x = 176

= x = 22