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torisob [31]
3 years ago
13

How to do #9.........

Mathematics
1 answer:
Serhud [2]3 years ago
5 0
4x and 2x line along a straight line, their sum then must be 180° so

6x=180

x=30

So the angles in there are:

3(30)-5=85°

2(30)=60°

4(30)=120°
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