1. Do Now: For isosceles triangle, find the indicated measure. Isosceles Triangles Do Now & Notes Name:______________________ Date:______________ Group:_______

2. Today’s Notes: Complete each statement In an isosceles triangle, the Legs are ___________________________________ _________________________________________________________________ In an isosceles triangle, the Vertex Angle is _____________________________ _________________________________________________________________ The Base of an Isosceles Triangle is ___________________________________ _________________________________________________________________ The Base Angles of an Isosceles Triangle _______________________________ __________________________________________________________________ The Symmetry Line of an Isosceles Triangle _____________________________ __________________________________________________________________

3. T RI 1a. For the isosceles triangles above name and label The Legs The Vertex Angle The Base The Base Angles 1b. For the isosceles triangles above draw the Symmetry Line and then label all of the congruent angles and congruent segments 2. For ∆TWS, find the indicated measures

4. 3. 4. Using the given information, write a persuasive paragraph to explain why