5.8. Indirect Proof in Algebra and Geometry http://www.ck12.org
Chapter Review
IfCandEare the midpoints of the sides they lie on, find:
- The perpendicular bisector ofF D.
- The median ofF D.
- The angle bisector of^6 FAD.
- A midsegment.
- An altitude.
- Trace 4 FADonto a piece of paper with the perpendicular bisector. Construct another perpendicular bisector.
What is the point of concurrency called? Use this information to draw the appropriate circle. - Trace 4 FADonto a piece of paper with the angle bisector. Construct another angle bisector. What is the point
of concurrency called? Use this information to draw the appropriate circle. - Trace 4 FADonto a piece of paper with the median. Construct another median. What is the point of
concurrency called? What are its properties? - Trace 4 FADonto a piece of paper with the altitude. Construct another altitude. What is the point of
concurrency called? Which points of concurrency can lie outside a triangle? - A triangle has sides with lengthx+6 and 2x−1. Find the range of the third side.
Texas Instruments Resources
In the CK-12 Texas Instruments Geometry FlexBook, there are graphing calculator activities designed to
supplement the objectives for some of the lessons in this chapter. See