Answer:
x = 6
Step-by-step explanation:
Since the triangles are isosceles the two bottom angles are equal. So, 71 + 71 + 2 + 6x would help us find x. Now to solve it.
71 + 71 + 2 + 6x = 180
142 + 2 + 6x = 180
144 + 6x = 180
6x = 180 -144
6x/6 = 36/6
x = 6
