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arlik [135]
3 years ago
12

PLEASE HELP ASAP!!!

Mathematics
2 answers:
Anettt [7]3 years ago
8 0
I think the answer is 89 degrees.
Natalka [10]3 years ago
5 0

Answer:

BC= 24

Step-by-step explanation:

thhe triangle is isosceles

x+8 =2x-1

x -2x = -1 -8

-x = -9

x=9

substitute x=9 into the equation of BC

BC = 3x-3= 3*9 -3 = 27 -3 = 24

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