C-12 - The incenter of a triangle is equidistant from the sides of the triangle.
C-13 - The circumcenter of a triangle is equidistant from the vertices of a triangle.
The centroid investigation is attached below.
C-14 ... are concurrent at the centroid
C-15 .... twice...
C-16 - The centroid is the center of gravity or mass of a triangle.
Attach your cardstock in your G.T. for a sketch.
The half-worksheet of practice on constructing points of concurrency is attached below. Get this done.
The homework #16 is p 179:1-5 (no sketches necessary... just state whether circumcenter or incenter based on new conjectures), p 186:1-5 (use C-15-16), p 191:1-2,8-24. For the T/F, correct or sketch for false. For matching, answer only is enough. It is due Tues-Wed (the next block).
Quizzes must be made up by zero hour tomorrow. I am returning the quiz during the next block.
Topics will be available tomorrow as well.
The test is Thurs-Fri, Oct 19-20, about 70 pts.