Geometry Review #1

Front

What are alternate exterior angles?

Back

Angles that lie outside a pair of lines and on opposite sides of a transversal.

Front

Which angles are considered consecutive interior angles?

Back

Angles that lie between a pair of lines and on the same side of a transversal.

Front

What is the relationship between vertical angles?

Back

Vertical angles are always congruent (equal measures).

Front

How do you find the missing angle in a triangle?

Back

Use the fact that the sum of angles in a triangle is 180 degrees.

Front

What does it mean for lines to be parallel?

Back

Lines that never intersect and are equidistant from each other.

Front

What is 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 different parallel lines cut by a transversal.

Front

How do you prove that two lines are parallel using angles?

Back

If a transversal creates alternate interior angles that are congruent, the lines are parallel.

Front

What is the sum of the interior angles of a polygon?

Back

(n-2) × 180 degrees, where n is the number of sides.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.