Asked by Travis Scott

What is the length of BC¯¯¯¯¯?





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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 x plus 9. The length of side A B is labeled as 2 x minus 8. The length of side B C is labeled as x.

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Answered by GPT-5 mini AI
Since angles B and C are congruent, AB = AC. So set 2x − 8 = x + 9.
Solve: x = 17. Thus BC = x = 17 units.