Similarity Unit Review

Front

What is a proportion?

Back

A proportion is a statement that two ratios are equal.

Front

What does it mean for two polygons to be similar?

Back

Two polygons are similar if their corresponding angles are congruent and their corresponding sides are proportional.

Front

If a 15ft statue casts a 20ft shadow, how tall is a baby giraffe that casts an 8ft shadow?

Back

6 ft.

Front

What is the value of x if 2x + 4 = 10?

Back

3

Front

What is the value of x if 3x - 2 = 19?

Back

7

Front

What is the ratio of the height of the statue to the height of the giraffe?

Back

15:6 or 5:2.

Front

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

Back

Their corresponding sides are proportional.

Front

What is the relationship between similar figures and scale factors?

Back

Similar figures have a constant scale factor between their corresponding sides.

Front

If the sides of two similar triangles are in the ratio 3:5, what is the ratio of their areas?

Back

The ratio of their areas is 3²:5² or 9:25.

Front

What is the definition of corresponding angles in similar figures?

Back

Corresponding angles are angles that are in the same position in different figures.