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Find m∠1. Then classify the triangle by its angles.

The triangle can be classified by its angles as
A. Right
B. Obtuse
C. Equiangular
D. Acute

Find m1 Then classify the triangle by its angles The triangle can be classified by its angles as A Right B Obtuse C Equiangular D Acute class=

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Answer: 1) 71 degrees 2) d- acute
Explanation: The area of every triangle is 180 degrees. So then you would add 78 to 31 and get 109. After you would subtract 109 from 180 and get 71.

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