Q:

# What are alternate exterior angles?

A:

The angles that lie on the exterior of the intersection created on opposite sides of a paired set of intersecting lines are alternate exterior angles. If the two intersecting lines are parallel, the alternate exterior angles are congruent.

## Keep Learning

Mathematicians use properties of alternate exterior angles to find the measurement of an angle or to determine the relationships between intersecting lines.

For example, in a drawing of two parallel lines intersected by a transversal, a person uses the alternate exterior angle value to find the measure of an exterior angle. This theorem also solves the measure of a supplementary angle, as well.

Sources:

## Related Questions

• A: Irregular shapes are those with sides of different lengths and angles that are unequal. Regular shapes have sides with equal lengths and have angles of the... Full Answer >
Filed Under:
• A: A polygon with four sides and four angles is called a quadrilateral. Quadrilaterals are two-dimensional, closed shapes with angle measurements that add up ... Full Answer >
Filed Under:
• A: A heptagon is a figure or polygon that has seven angles and seven sides. The sum of these seven interior angles has to equal 900 degrees.... Full Answer >
Filed Under:
• A: Four different methods for determining triangle congruency by examining sets of sides and angles exist: SSS (side, side, side), SAS (side, angle, side), AS... Full Answer >
Filed Under:
PEOPLE SEARCH FOR