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Mathematics, 27.04.2021 21:50 mtiger

A triangle has three angles, ∠1, ∠2, and ∠3. if ∠1= 30∘ and ∠2 = 80∘, what is the measure of ∠3 A.70
B.10
C.90
D.60

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A triangle has three angles, ∠1, ∠2, and ∠3. if ∠1= 30∘ and ∠2 = 80∘, what is the measure of ∠3 A....
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