Similar Figures

Front

What are similar figures?

Back

Two figures that have the same shape but may differ in size.

Front

What is the relationship between the corresponding angles of similar figures?

Back

All corresponding angles in similar figures are congruent.

Front

What is the relationship between the corresponding sides of similar figures?

Back

The ratios of the lengths of corresponding sides are equal.

Front

If two triangles are similar, what can be said about their areas?

Back

The ratio of their areas is equal to the square of the ratio of their corresponding side lengths.

Front

What is the term for figures that are the same shape but not the same size?

Back

Similar.

Front

If triangle ABC is similar to triangle DEF, and the length of side AB is 6 and side DE is 9, what is the ratio of their corresponding sides?

Back

2:3.

Front

If two triangles have a side length ratio of 4:5, what is the ratio of their perimeters?

Back

4:5.

Front

If the length of one side of a triangle is 10 and the corresponding side of a similar triangle is 15, what is the scale factor?

Back

3:2.

Front

True or False: All sides of similar figures are congruent.

Back

False.

Front

What is a proportion in the context of similar figures?

Back

An equation that states that two ratios are equal.