Tuesday, October 31, 2006
Geometry (Class 22)
Announcements
GEOMETRY MID-TERM Date Changed! Now on Friday November 17
Bring protractor and compass for next class!
Overview
Practice Proving Triangles Congruent
Today we spend time in class practicing our skill of proving triangles congruent. In addition we develop and explanation for why their is not an SSA congruence postulate.
Key Ideas
Identifying included and non-included sides and angles-- “included” can be thought of as meaning “between”
Determining if it is possible to prove two triangles congruent based on the given information. You always need at least three pairs of congruent angles or sides!
Identifying which congruence postulate is best for a given situation: SSS, SAS, ASA, AAS.
Proving two triangles congruent and writing congruence statements.
Points on the circumference of a circle are equidistant from the center of the circle.
How to use a Venn diagram to help identify similarities and differences when making a comparison.
Vocabulary
Compare
Venn Diagram
Assignment
Lesson 4.3 Practice B Handout (p.46) #12, 13
Lesson 4.4 Pracrtice B Handout (p.60) #10, 11
Chapter 1 Test (Txt. p.63) 5 most important problems-- you pick them!
Permalink