Pre-AP Geometry - 7.2 HW

Front

A proportion is two ratios that are __________.

Back

equal

Front

If two polygons are similar, the ratio of their corresponding sides is called the __________.

Back

scale factor

Front

To find the scale factor of two similar polygons, you divide the length of a side of the smaller polygon by the length of the corresponding side of the larger polygon. True or False?

Back

False

Front

If the scale factor of a smaller figure to a larger figure is 1:3, this means the larger figure is __________ times bigger than the smaller figure.

Back

3

Front

The scale factor of two similar triangles is 2:1. If the shorter triangle has a base of 4 cm, what is the base of the larger triangle?

Back

8 cm

Front

If two polygons are similar, their corresponding angles are __________.

Back

equal

Front

The ratio of the areas of two similar figures is equal to the square of the __________.

Back

scale factor

Front

If the scale factor of two similar figures is 3:2, what is the ratio of their areas?

Back

9:4

Front

When two polygons are similar, the lengths of their corresponding sides are in the same __________.

Back

proportion

Front

If a triangle has sides of lengths 6 cm, 8 cm, and 10 cm, and is similar to another triangle with a side length of 12 cm, what is the scale factor?

Back

2:1