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

Find mZR R 120° 140° S Need help with this question?-example-1
User Uli Gerhardt
by
8.9k points

1 Answer

2 votes

Answer:


m\angle R = 50 \degree

Explanation:

By inscribed angle theorem:


m\angle R = (1)/(2) [360 \degree - (120 \degree + 140 \degree)] \\ \\ m\angle R = (1)/(2) [360 \degree -260 \degree] \\ \\ m\angle R = (1)/(2) * 100 \degree \\ \\ m\angle R = 50 \degree \\ \\

User Jonathan Lockley
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