Similarity Test Review

Front

What are Vertical Angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Front

What is the definition of Similar Figures?

Back

Similar figures are shapes that have the same shape but may differ in size. Their corresponding angles are equal, and their corresponding sides are in proportion.

Front

What is the Corresponding Angles Postulate?

Back

If two parallel lines are cut by a transversal, then each pair of corresponding angles is equal.

Front

What is the Alternate Interior Angles Theorem?

Back

If two parallel lines are cut by a transversal, then each pair of alternate interior angles is equal.

Front

How do you determine if two triangles are similar?

Back

Two triangles are similar if their corresponding angles are equal and the lengths of their corresponding sides are proportional.

Front

What is the definition of Proportions?

Back

Proportions are equations that state that two ratios are equal.

Front

How do you solve for x in a proportion?

Back

To solve for x in a proportion, cross-multiply and then divide to isolate x.

Front

What is the definition of Scale Factor?

Back

The scale factor is the ratio of the lengths of two corresponding sides of two similar figures.

Front

What does it mean for a figure to be enlarged?

Back

An enlargement occurs when a figure is increased in size by a scale factor greater than 1.

Front

What does it mean for a figure to be reduced?

Back

A reduction occurs when a figure is decreased in size by a scale factor less than 1.