Chapter 7 Vocab Review

1. Write the generic formula (proportion) for geometric mean (x) of two positive numbers a & b.

2. “1 inch=100 miles” is printed on a map. This is an example of a __________ in a scale drawing.

3. A ________________ is a statement that two ratios are equal.

4. Finding distances using similar triangles is called __________ ___________

5. The ratio of the lengths of corresponding sides of two similar figures is the ___________ __________.

6. Two polygons are ________ is corresponding angles are congruent and corresponding sides are proportional.

7. The length and width of a golden rectangle are in the ________ _________ which is _______ : ___.

8. The _______ ________ ___________ states that the product of the _____ (a & d) equals the product of the _______ (b & c) in the following proportion: a : b = c : d

9. When three or more ratios are equal you can write an __________ __________.

10. A _______ _______ is a rectangle that can be divided into a square and a rectangle that is similar to the original rectangle.

1.a over x = x over b 2.scale 3.proportion 4.indirect measurement 5.similarity ratio 6.similar 7.golden ratio (1.618 : 1) 8.cross-product property; extremes; means 9.extended proportion 10.golden rectangle