In this video, we tackle a classic geometry challenge: given a triangle with interior angles labeled x°, x°, and y°, find the value of the mystery angle w in terms of x and y. We'll walk through the logic step by step using the triangle angle sum theorem and exterior angle relationships — then verify our answer with real numbers.
✅ Answer: w = 2x + 2y − 180
📌 Topics covered: Triangle angle sum, exterior angles, algebraic reasoning
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