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Mathematics 10 Online
OpenStudy (anonymous):

The folding chair has different settings that change the angles formed by its parts. Suppose m2 is 31 and m3 is 72. Find m1. The diagram is not to scale.

OpenStudy (anonymous):

im not really good at geometry.. but it seems like we need more information.. maybe the diagram would help?

OpenStudy (anonymous):

72+31=143 143-180=37 DEG

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