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17 votes
17 votes
I need help with #28

I need help with #28-example-1
User AnilJ
by
2.9k points

1 Answer

11 votes
11 votes

9514 1404 393

Answer:

13

Explanation:

If we assume that points P, Q, R, S are in that order on a arc centered at O, then we have ...

∠POQ +∠QOS = ∠POR +∠ROS

∠ROS = ∠POQ +∠QOS -∠POR

∠ROS = 28 +46 -61 = 13

User Jeff Steil
by
3.3k points