Question

In the given figure 1 = 55°, 2 = 20°, 3 = 35°, 4 = 145
Prove that AB | CD
De
M​

Answer 1

Answer:

c ko extend kar jo angle upar banega vo angle cmn se corresponding hoga toh cd aur mn parallel proved aurangle b 55 diya hai aur angle m ka pura sum hua 35+25 = 55 degree toh anyle b aur m altenate toh vo dono lines bhi parallel proved to line ab is parllel to cd and mn