Middle School

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------------------------------------------------ What is the measure, in degrees, of the missing angle in the triangle below?

(Angle Q is 39 degrees, angle R is 66 degrees, and angle S is unknown.)

Answer :

Answer:

75°

Step-by-step explanation:

sum of angles of a triangle=180°

∠Q+∠R+∠S=180°

39+66+∠ S=180°

105+∠S=180

∠S=180-105=75 °

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