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Answer:</h2>
For ∠1: Because all angles inside a triangle equal 180°, set ∠2, 68, and ∠1 equal to 180, then solve for ∠1.

∠1 = 63°
For ∠3: Subtract 93 from 180 to get ∠3

∠3 = 87°
For ∠4: Because all angles inside a triangle equal 180°, set ∠3, 49, and ∠4 equal to 180, then solve for ∠4.
<h2>

</h2>
∠4 = 44°
∠2 = 49°