drewgoat204
drewgoat204
25-06-2018
Mathematics
contestada
i need help !!!!!!!!!!!!!!!
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ALin03
ALin03
25-06-2018
We can see that
angle A = angle B
Therefore, we set the two equations equal to each other and solve:
7x+40=3x+112
4x=72
x=18
Then we use x=18 and plug it back in the equation for angle A
7(18)+40=166°
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