The third angle of the triangle will be ∠B = 71°.
What is an angle?
The angle is defined as the span between two intersecting lines or surfaces at or close to the point where they meet.
Given that:-
- Two angles are ∠A = 42° and ∠C=67°
The third angle will be calculated as:-
∠A + ∠C + ∠B = 180
42 + 67 + ∠B = 180
∠B = 180 - 42 - 67
∠B = 71°
Therefore the third angle of the triangle will be ∠B = 71°.
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