Question

lines ab and cd intersect each other at point o . if angle AOC : angle COB = 7:3 , then find the angles​

Answer 1

Answer:

lines ab and cd intersect each other at point o . if angle AOC : angle COB = 7:3 , then find the angles

Step-by-step explanation:

sfy Deco hcdv

Answer 2

Answer:

DOB=42°,BOC=138°,DOA=138°

Step-by-step explanation:

in the given figure

AOB=DOB. (vertically opposite angle)

DOB=42°(AOB=42°)

DOB+BOC=180°(linear pair)

42°+BOC=180°

BOC=180°-42°

BOC=138°

BOC =DOA(vertically opposite angle)

DOA=138°