13-02-2017
Mathematics

contestada

Find the missing angle measure in ΔQRS.
Q = ____°, R = 60°, S = 20°
A. 80
B. 100
C. 120
D. 60

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christinann062 christinann062

13-02-2017

the angle measurements of a triangle add up to be 180

Q+R+S=180

Q+(60)+(20)=180
Q+80=180
Q=100

your answer is B. 100

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