1. 6.1 Use Similar(~) Polygons
Mrs. vazquez
Geometry

2. g-srt.2.5 Essential Question:
How can you determine figures to be similar?
Objective:
Students will be able to use proportion to identify similar figures.

3. definitions ~ figures:
polygons are ~ if corresponding ∡s are ≅ and corresponding side lengths are proportional
Scale factor:
the ratio of the lengths of two corresponding sides

4. ABCD~QRST 8

5. perimeters of ~ polygons

6. 3:2 12 46

7. corresponding lengths in ~ polygons
If two polygons are ~, then the ratio of any two corresponding lengths in the polygon is = to the scale factor of the ~ polygons. 42