2. Sec: 6.5 Sol:

3.  If two triangles are similar, then the _____________ are proportional to the measures of corresponding sides. Remember: The perimeter is the sum of all the ______________ of a figure. Perimeters Sides Example: In the figure at the right,  ABC ~  XYZ. The following proportions are true:

4.  In the figure below,  ABD ~  ADC. If AD = 16, AC = 31, and DC = 23, find the perimeter of  ABD.

5. If two triangles are similar, then the measures of the corresponding ______________ are proportional to the measures of the corresponding sides. Remember: The _________________ is a segment that goes from a vertex and is perpendicular to the opposite “side”. Altitudes Altitude

6.  If two triangles are similar, then the measures or lengths of the corresponding ___________ __________ of the triangles are proportional to the measures of the corresponding sides.  Example:  TSR ~  GFE. is an angle bisector of  RTS. is an angle bisector of  EGF. List some possible proportions: AngleBisectors

7.  If two triangles are similar, then the measures of the corresponding ________ are proportional to the measures of the corresponding sides.  Remember: A _______ goes from a vertex to the ________ of the opposite side.  Example:  CAB ~  YWX. is median of  CAB. is median of  YWX. List some possible proportions: Medians Median Middle

8.  An angle bisector in a triangle separates the opposite side into segments that have the same ratio as the other two sides.  Example: is the angle bisector of  ACB. Complete the following statement:

9.  In the figure is and altitude of and is an altitude of. Find x if. D E C I J K G L

10.  The Drawing represents two poles supported by wires.. Find the height of pole. B CFGAD E 80FT 30FT

11.  Classwork:  Homework: pg 10-14e, 17, 22-26e, 28