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Mathematics 17 Online
OpenStudy (anonymous):

Look at triangle PQR with its incenter at O.

OpenStudy (anonymous):

OpenStudy (anonymous):

i need help.

OpenStudy (anonymous):

The incenter is the point where the angle bisectors meet. If angle PRQ is 70, you should be able to get angle PRO. If angle OPQ is 25, you should be able to get angle RPO. Use that information and the fact that the sum of the measures of all the angles in a triangle is 180. If you get stuck, show your work.

OpenStudy (anonymous):

120

OpenStudy (anonymous):

thats what i got

OpenStudy (anonymous):

Yes, you got it!

OpenStudy (anonymous):

okay another one

OpenStudy (anonymous):

Which statement about an orthocenter of a triangle is always true?

OpenStudy (anonymous):

It is a point that lies on all three altitudes of a triangle. It divides the triangle into smaller triangles of equal area. It divides a side of the triangle into two congruent parts. It is the intersection of an altitude and a median.

OpenStudy (anonymous):

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