Answer:
Isosceles
Explanation:
Isosceles: but you don't know that until you solve the following equation 6x+6 + 8x-8 + 12x
26x - 2 = 180
26x = 182
x = 182/26
x = 7
However, in the interests of proof, solving this equation
6x + 6 (48)
8x - 8 (48)
12x (84)
Area all different. The values are given