# Math

In triangle ABC, the measure of angle A is 80 degrees and the measure of angle B is 50 degrees. If the length of AB is 2x - 12 and the length of AC is x - 3, what is the length of AB?
A) 15
B) 12
C) 9
D) 6
E) 3

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2. 👎
3. 👁
1. 80 + 50 = 130
SO C = 50
and we have an isosceles triangle with
AB = AC
so
2x-12 = x-3
or
x = 9

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2. 👎

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