You need two terms that multiply to (12x-4). The term on the outside needs to be a common multiple of 12 and 4. The common factors are 1, 2, and 4. Here are the following possible dimensions:
1(12x-4)
2(6x-2)
4(3x-1)
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Andy is incorrect because more then one triangle can be drawn with the given information
Answer:-5 10 ,13
Step-by-step explanation: