The sum of the angles in a triangle is always 180°.
Therefore, the measure of the third angle can be found by subtracting the sum of the first two angles from 180°:
180° - (63° + 40°) = 180° - 103° = 77°
So, the measure of the third angle is 77°.
Use the Triangle Angle Sum Theorem to find the measure of the third angle if the first and second angle measure 63° and 40° .(1 point)
°
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