Points of Concurrency
Find the perpendicular bisector between the two Lowe's locations by:
1) select the perpendicular bisector button 
2) and then selecting the 2 blue dots representing the Lowe's stores.
2) and then selecting the 2 blue dots representing the Lowe's stores.This third red dot represents a different chain. Recall that the perpendicular bisector helps find equidistance between points, in this case the Lowe's stores. Your perpendicular bisector should nearly pass through this store. What store do you think this is? Why would they put it here?
Perpendicular Bisectors, Circumcenter, and Circumcircle
Construct the 3 Perpendicular Bisectors of each triangle using: 
Construct 
the point of concurrency (circumcenter which is the intersection of the three lines) for each triangle.
Construct the Circumcircle 
(center at the circumcenter and passing through the vertices).
Construct the point of concurrency (circumcenter which is the intersection of the three lines) for each triangle.
Construct the Circumcircle (center at the circumcenter and passing through the vertices).The Circumcenter (point of intersection of the 3 perpendicular bisectors) is located __________________.
Angle Bisectors, Incenter, and Incircle
Construct the 3 Angle Bisectors of each triangle using 
Construct the point of concurrency (incenter which is the intersection of the three lines) for each triangle.
Construct the perpendicular line from the 
incenter to one of the sides. Mark the intersection at the right angle where the two lines meet.
Construct the Incircle (center at the incenter and the point identified on the last step).
Construct the point of concurrency (incenter which is the intersection of the three lines) for each triangle.
Construct the perpendicular line from the incenter to one of the sides. Mark the intersection at the right angle where the two lines meet.
Construct the Incircle (center at the incenter and the point identified on the last step).The Incenter (point of intersection of the 3 angle bisectors) is located __________________.
Medians and centriods
Construct the 3 Medians of each triangle (find the midpoint 
of each side and connect to the opposite vertex 
.
For Triangle ABC, mark the centroid (point of concurrency) as point X 
and the intersection on Segment BC as point Y.
Measure AX 
Measure XY.
Calculate 2*XY. What do you notice?
of each side and connect to the opposite vertex .
For Triangle ABC, mark the centroid (point of concurrency) as point X and the intersection on Segment BC as point Y.
Measure AX
Measure XY.
Calculate 2*XY. What do you notice?
The Centriod (point of intersection of the 3 medians) is located __________________.
Altitudes and Orthocenters
Construct the 3 Altitudes of each triangle (Perpendicular from a vertex to the opposite side)
Construct the point of concurrency (orthocenter: which is the intersection of the three lines) for each triangle.
The Orthocenter (point of intersection of the 3 Altitudes) is located __________________.