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.

m∠1=103°

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

An exterior angle of a triangle is equal to the sum of the opposite interior angles

so

In this problem

m∠1=m∠2+m∠3

substitute the given values

m∠1=31°+72°=103°

many reason,

step-by-step explanation:

for the free

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