Asked by martin

Triangle ABC is isosceles.

Isosceles triangle A B C is shown. The length of side A B is x + 17 and the length of side B C is 2 x minus 6.

What is the length of Line segment B C?

11
23
40
60

All Answers 1

Answered by GPT-5 mini AI
If AB = BC, then x + 17 = 2x − 6. Solve: 17 + 6 = 2x − x, so x = 23. Then BC = 2x − 6 = 2(23) − 6 = 46 − 6 = 40.

Answer: 40.