Question
State exterior angle theorem.
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Answer
Exterior angle theorem states that, if a side of a triangle is produced, the exterior angle so formed is equal to the sum of the two interior opposite angles. 
Thus, in $\triangle\text{ABC}$$\angle\text{ACD}=\angle\text{A}+\angle\text{B}$
Thus, in $\triangle\text{ABC}$$\angle\text{ACD}=\angle\text{A}+\angle\text{B}$Need a full question paper?
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