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Triangle Angle Challenge — Find x When Angles Are x, 2x, and 3x
In this video, we solve one of the most important algebra-meets-geometry problems you’ll ever see. A triangle has angles labeled x, 2x, and 3x, and your goal is to find the value of x — and then determine all three angles. This problem looks simple, but many students miss it because they forget a key triangle rule or don’t know how to set ...
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