Find the measure of the third angle of a triangle if the measures of the other two angles are given.
-35.5° and 86.1°
A)148.4°
B)28.4°
C)58.4°
D)238.4°

Name: Find the measure of the third angle of a triangle if the measures of the other two angles are given. -35.5° and 86.1° A)148.4° B)28.4° C)58.4° D)238.4°
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Question

Quizplus · Accepted Answer

The sum of angles in a triangle is always 180°. Subtract the sum of the given angles (35.5° + 86.1° = 121.6°) from 180° to find the third angle: 180° - 121.6° = 58.4°.

Find the Measure of the Third Angle of a Triangle