Find the missing angle measure.
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Answer: 35°
Step-by-step explanation:
m∠A + m∠B + m∠C = 180°
40° + 105° + m∠C = 180°
m∠C + 145° = 180°
Subtract 145° from both sides.
m∠C = 35°
So, the measure of the missing angle (x) is 35°.