7.1-7.3 Study Guide

7.1

·         Ratio- a comparison of a to b

·         Proportion- two equal ratios

·         Means and extremes- the extreme is the first and last number of a proportion and the means are the middle numbers.

7.2

·         Similar polygons- If corresponding angles are congruent and lines similar

·         Scale Factor- ratio of lengths of 2 corresponding sides

7.3

AA- If two angles are congruent with other angles of a different triangle the triangles are similar.