In a triangle, one angle is 64 ° the second – 45 ° find the third angle.
| December 26, 2020 | education
by the theorem on the sum of angles in a triangle, the sum of 3 angles is 180 degrees.
we have: / 1 = 64 °, / 2 = 45 °
then / 3 = 180- (64 + 45) = 180-109 = 71 degrees
Answer: / 3 = 71 degrees
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