We continued our study of triangles today by taking a look at some of the properties of isosceles triangles. We went over how to use base angles and the perpendicular bisectors of the base to find shortcuts to calculations. The key ingredient was that the triangle had to be isosceles (2 sides congruent). We went over 3-4 examples together before getting started on the homework assignment.
Assignment: section 4-4; page 137; WE 1-10, 13; + Isosceles Triangle worksheet
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