Triangle Angle Sum Theorem Practice
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Question
Use the Triangle Angle Sum Theorem to find the measure of the third angle of the triangle if the measure of two angles are 63° and 40°
To find the measure of the third angle of the triangle, we can use the Triangle Angle Sum Theorem, which states that the sum of the interior angles of a triangle is always 180 degrees.
Given that two angles of the triangle are 63° and 40°, we can find the measure of the third angle by subtracting the sum of the two given angles from 180°:
180° - (63° + 40°) = 180° - 103° = 77°
Therefore, the measure of the third angle of the triangle is 77°.