![m\angle R = \frac{1}{2} [360 \degree - (120 \degree + 140 \degree)] \\ \\ m\angle R = \frac{1}{2} [360 \degree -260 \degree] \\ \\ m\angle R = \frac{1}{2} \times 100 \degree \\ \\ m\angle R = 50 \degree \\ \\](/tpl/images/1241/4022/ac118.png)
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R
120°
140°
S
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Mathematics, 06.04.2021 14:00 journeyhile5
Find mZR
R
120°
140°
S
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Answers: 3
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