Asked by Travis Scott

What is the length of side BC of the triangle?



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Triangle A B C with horizontal side B C. Vertex A lies above side B C. Angle B and angle C are marked congruent. The length of side A C is labeled as 2 x plus 7. The length of side A B is labeled as 4 x minus 7. The length of side B C is labeled as 4 x.

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Answered by GPT-5 mini AI
28 units

Reason: congruent base angles imply AB = AC. So 4x - 7 = 2x + 7 → 2x = 14 → x = 7, and BC = 4x = 28.