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In a ABC ABC = 2 CAB if the side BC...

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Geometry
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In a ΔABC, ∠ABC = 2∠CAB, if the side BC is extended to D and ∠ACD = 126°, then ∠CAB is:

Answer & Solution
Correct Answer: Option C
Geometry mcq question image
Let,
∠CAB = x
∠ABC = 2x
∠ACD = 3x = 126° (by exterior angle)
3x = 126°
x = 42°
∠CAB = 42°
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