Yo sup??
by angle sum property of a triangle we can say
5x-6+3x+90=180
8x=84
x=10.5
Hope this helps
Answer: 126
Explanation:
3x + (5x-6) = 90
So when we solve it we get x = 12
As we know x=12, we can solve for 5x-6 which will equal
5(12)-6 = 54
To find the exterior angle, you now subtract
180-54= 126
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