Triangle Angle Sum Theorem Practice

Question

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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 40° and 65°

Answer 1

To find the measure of the third angle, we first add the measures of the two known angles:
40° + 65° = 105°

Next, we subtract this sum from 180° (the total sum of the angles in a triangle):
180° - 105° = 75°

Therefore, the measure of the third angle is 75°.