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Stolb23 [73]
3 years ago
9

What is the length of side BC?

Mathematics
1 answer:
Nat2105 [25]3 years ago
7 0
This is an isosceles triangle: a triangle with two sides equals.
Therefore:
side BA=side CA
8x-4=5x+11

8x-5x=11+4
3x=15
x=15/3
x=5

length of  side BC=4x-2=4(5)-2=20-2=18.

The lenght of side BC is 18 units of lenth. 
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