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Aleks04 [339]
3 years ago
8

HELLLPPPPPP!!!!! I WILL MARK AS BRAINLIEST!!

Mathematics
1 answer:
Mumz [18]3 years ago
3 0

Answer:

BC = 24

Step-by-step explanation:

since ABC is an isosceles triangle

<C = <B,  then AC = AB

AC=AB

x+8 = 2x-1

subtract x from each side

x+8-x =2x-1-x

8 =x-1

add 1 to each side

8+1 = x-1+1

9 =x

BC = 3x-3

BC = 3(9) -3

BC= 27-3

BC = 24

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