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TiliK225 [7]
3 years ago
8

What is BC? Enter your answer in the box?

Mathematics
2 answers:
fgiga [73]3 years ago
8 0

the tickmarks on the vertices of B and C mean that those angles are twins, which means that the sides AB = AC, which means is an isosceles triangle.

now if AB = AC, then

\bf 8x-4=5x+11\implies 3x=15\implies x=\cfrac{15}{3}\implies \boxed{x=5} \\\\\\ BC\implies 4x-2\implies 4(5)-2\implies 18

Rufina [12.5K]3 years ago
7 0

Answer:

18 is your answer


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