3 years ago

Find mZR R 120° 140° S Need help with this question?

Mathematics

1 answer:

andrew-mc [135]3 years ago

8 0

Answer:

$m\angle R = 50 \degree$

Step-by-step explanation:

By inscribed angle theorem:

$m\angle R = \frac{1}{2} [360 \degree - (120 \degree + 140 \degree)] \\ \\ m\angle R = \frac{1}{2} [360 \degree -260 \degree] \\ \\ m\angle R = \frac{1}{2} \times 100 \degree \\ \\ m\angle R = 50 \degree \\ \\$

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