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Mathematics 12 Online
OpenStudy (demonchild99):

Quadrilateral OPQR is inscribed in circle N, as shown below. What is the measure of ∠QRO? Quadrilateral OPQR is inscribed in circle N. Angle O is labeled x plus 17 degrees, angle Q is 6x minus 5 degrees, and angle R is 2x plus 19 degrees. 41 67 113 139

OpenStudy (demonchild99):

@Mesopretty

OpenStudy (demonchild99):

@sleepyjess

OpenStudy (sleepyjess):

@Kainui

OpenStudy (sleepyjess):

batman says to draw it out :P

OpenStudy (demonchild99):

i dont knoww to do thast

OpenStudy (demonchild99):

ugh...stupid keyboard...*i dont know how to do that*

OpenStudy (sleepyjess):

Where is the picture? inscribed in circle N, as shown below.

OpenStudy (demonchild99):

hold on im trying to get it

OpenStudy (demonchild99):

OpenStudy (sleepyjess):

Here you go @iambatman

OpenStudy (anonymous):

Well before we jump into the question, there is something called the cyclic quadrilateral theorem, it tells us opposite angles in a cyclic quadrilateral (as presented) are supplementary, meaning they add up to 180 degrees.

OpenStudy (demonchild99):

ok...

OpenStudy (anonymous):

|dw:1423362679477:dw| no it's important you realize this, I'm not just saying this so you can just toss it out, this is very fascinating actually.

OpenStudy (demonchild99):

lol...ik...thats why im writing it down...lol

OpenStudy (anonymous):

|dw:1423362768719:dw| you see we could figure out the bottom corners just by knowing those angles at the vertices

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