Q. 94.3( 6 Votes )

# Let’s find the va

Answer :

∠AOD = 3x°

∠DOC = 80°

∠COB = x°

∠AOD + ∠DOC + ∠COB = 180° (linear pair)

3x + x + 80° = 180°

4x = 180° – 80°

4x = 80°

x = 20°

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