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Mathematics 7 Online
OpenStudy (anonymous):

In the diagram, P1P2 and Q1Q2are the perpendicular bisectors of AB¯¯¯¯¯ and BC¯¯¯¯¯, respectively. A1A2 and B1B2 are the angle bisectors of ∠A and ∠B, respectively. What is the center of the circumscribed circle of ΔABC? a. p b. q c. r d. s

OpenStudy (anonymous):

OpenStudy (anonymous):

@iGreen @Lexi724

OpenStudy (lexi724):

So a bisector cuts a shape in half equally. And the center is where 3 or more points meet up

OpenStudy (lexi724):

In geometry, the circumscribed circle or circumcircle of a polygon is a circle which passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius.

OpenStudy (lexi724):

so where is your vertices

OpenStudy (anonymous):

ABC

OpenStudy (lexi724):

right, sorry step by step here. so what do you think Q,R or S

OpenStudy (anonymous):

i think its Q

OpenStudy (anonymous):

By the way this is cole i was on wrong account

OpenStudy (anonymous):

@Lexi724

OpenStudy (anonymous):

anybody here?

OpenStudy (anonymous):

@bibby @iGreen can you guys help?

OpenStudy (anonymous):

@Lexi724 can you?

OpenStudy (lexi724):

Sorry here

OpenStudy (anonymous):

its all good

OpenStudy (anonymous):

is q right?

OpenStudy (lexi724):

I believe it is Q or S im not exactly sure on that.... @phi

OpenStudy (anonymous):

would he know

OpenStudy (lexi724):

yes

OpenStudy (anonymous):

Because I am taking a test and I am trying to get a 100

OpenStudy (lexi724):

i understand that feeliing

OpenStudy (anonymous):

phi you got anything

OpenStudy (phi):

Here is the idea. First, circumscribed is "fancy" for a circle on the outside of the triangle |dw:1428500744113:dw|

OpenStudy (phi):

Second idea draw a chord (that is a line from one part of the circle to another part) |dw:1428500807250:dw|

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