5.01 discussion: line and triangle relationships

this unit is full of many topics that require you to remember many facts. design a
chart, flow chart, mind map, or some other visual to you distinguish the items
you learned about in one of these lessons:

i. parallel lines and transversals
ii. isosceles and equilateral triangles
iii. circumcenter, incenter, centroid, and orthocenter
iv. quadrilaterals