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Question
In figure,∠AOC =50∘and∠BOC = 20∘, find∠AOB.
In figure,∠AOC =50∘and∠BOC = 20∘, find∠AOB.
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Solution
In figure,∠AOB and,∠BOC are adjacent angles.
⟹ ∠AOC =∠AOB +∠BOC
⟹ 50∘= ∠AOC + 20∘
⟹ ∠AOB = 50∘- 20∘ = 30∘
In figure,∠AOB and,∠BOC are adjacent angles.
⟹ ∠AOC =∠AOB +∠BOC
⟹ 50∘= ∠AOC + 20∘
⟹ ∠AOB = 50∘- 20∘ = 30∘
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