2 years ago

Help plz, I don't know how to find the answer

Mathematics

1 answer:

svetoff [14.1K]2 years ago

5 0

9514 1404 393

Answer:

Step-by-step explanation:

As always, you identify the possible relationships between the given values. Make use of those to find the unknown. Then use that value as required to answer the question(s) posed.

The triangle is isosceles, so AB = AC.

AB = AC

4x +1 = 2x +23

2x = 22 . . . . . . . . . subtract (2x+1)

x = 11

With this value of x, we can find BC.

BC = 3x -8

BC = 3×11 -8

BC = 25 . . . . units

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