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The folding chair has different settings that change the angles formed by its parts. The diagram is not to scale.

Suppose m∠2 is 34 and m∠3 is 76. Find m∠1.

The folding chair has different settings that change the angles formed by its parts-example-1

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An exterior angle is equal to the sum of its remote interior angles. Therefore, angle 1 = angle 2 + angle 3. That tells us that angle 1 = 34 + 76 which is 110
User Jlansey
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