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Circle Theorems Question Help

http://prntscr.com/ave7zl

need help with this can someone explain how to do this. Thanks
Original post by junayd1998
http://prntscr.com/ave7zl

need help with this can someone explain how to do this. Thanks


What can you say about osr and ors
Reply 2
Original post by samb1234
What can you say about osr and ors


You could say OSR is 90-X
remember that the angles in a triangle always add up to a certain number....
Original post by junayd1998
You could say OSR is 90-X


Indeed, and what about ors (what can you say about the distances OR and OS?)
Reply 5
Original post by samb1234
Indeed, and what about ors (what can you say about the distances OR and OS?)


That it is an isoslies triangle because they are equal length OR and OS???
Original post by junayd1998
That it is an isoslies triangle because they are equal length OR and OS???


Yes
Reply 7
Original post by junayd1998
That it is an isoslies triangle because they are equal length OR and OS???


Yes.
Reply 8
Original post by Zacken
Yes.


So if we know OR and OS are equal and ROS is 2X Then 180-2x then divide by 2?
Im not sure tbh
Reply 9
Original post by junayd1998
So if we know OR and OS are equal and ROS is 2X Then 180-2x then divide by 2?
Im not sure tbh


What? You know that the triangle is isoceles, so ORS and SRO are both 90-x. And you also know that angles in a triangle add up to 180.

So ROS + 90 - x + 90 - x = 180. What's ROS, then?
Original post by Zacken
What? You know that the triangle is isoceles, so ORS and SRO are both 90-x. And you also know that angles in a triangle add up to 180.

So ROS + 90 - x + 90 - x = 180. What's ROS, then?

I am nearly there. Give me 10
Minutes
Original post by Zacken
What? You know that the triangle is isoceles, so ORS and SRO are both 90-x. And you also know that angles in a triangle add up to 180.

So ROS + 90 - x + 90 - x = 180. What's ROS, then?


2x.
Reply 12
Original post by junayd1998
2x.


Ta-da.

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