Question

Two lines l and m intersect each other. find the value of a . choose the correct one. a) 50 degree b) 110 degree c) 60 degree d) 130 degree .pls tell me the correct one fast friends i beg to you right now.​

Answer 1

Answer:

From the figure we know that ∠AOC and∠AOD from a linear pair

It can also be written as

∠AOC+∠AOD=180o

By substituting the values

50o+∠AOD=180o

∠AOD=180o−50o

∠AOD=130o

According to the figure we know that ∠AOD and ∠BOC are vertically opposite angles 

So we get

∠AOD=∠BOC=180o

According to the figure we know that ∠AOC and ∠BOD are vertically opposite angles

So we get

∠AOC+∠BOD=50o