Question

In Figure AOB is a straight
line.
Determine x.
angle AOD is x, angle COD is x and COB is 64 degree.​

Answer 1

Answer:

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Answer 2

Answer:

AOB is a straight line 

∴∠AOC+∠COD+∠DOB=180∘

⇒x+20∘+2x−20∘+60∘=180∘⇒3x=120∘⇒x=40∘∠COD=2x−20∘=(2×40∘)−20∘=60∘

I hope it helps you