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egoroff_w [7]
3 years ago
15

How do I find angles a, b, and c?

Mathematics
2 answers:
Monica [59]3 years ago
8 0
A. is supplementary to 130 so its 50.
50+90=140
180-140=B
B=40
60,B,C are supplementary so c=80

LenaWriter [7]3 years ago
6 0
For angle A, you need to do 180-130 which is 50
for angle B, you need to do 180- 90 - 50 which is 40
for angle C, you need to do 180 - 60 - 40 which is 80

If you want me to explain you with further details with how exactly I got those answers and how I knew what to do, then ask me. 
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