Transversals & Triangles

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of a transversal and outside the two lines it intersects.

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of a transversal and inside the two lines it intersects.

Front

What does the Triangle Sum Theorem state?

Back

The sum of the interior angles of a triangle is always 180°.

Front

How can you determine if two triangles are similar?

Back

Two triangles are similar if their corresponding angles are equal or their corresponding sides are in proportion.

Front

What is the definition of a transversal?

Back

A line that intersects two or more lines at different points.

Front

What are corresponding angles?

Back

Angles that are in the same position on two different lines cut by a transversal.

Front

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

Alternate interior angles are equal.

Front

What is the relationship between corresponding angles when two parallel lines are cut by a transversal?

Back

Corresponding angles are equal.

Front

What is the definition of similar triangles?

Back

Triangles that have the same shape but may have different sizes; their corresponding angles are equal and their corresponding sides are proportional.

Front

What is the sum of the angles in any triangle?

Back

180°.