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Anastaziya [24]
3 years ago
11

What is the angle of B

Mathematics
1 answer:
Charra [1.4K]3 years ago
5 0
Y-9 + y/2 = 180
Add nine to each side
y+y/2=189
Multiply each side by two
2y+y=378
Add the y's together
3y=378
Divide it all by three
y=126

so, Angle B is 126 degrees

I hope that helps!
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