Interior and exterior angles of triangles

Front

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

Back

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

Front

Define an exterior angle of a triangle.

Back

An exterior angle of a triangle is formed by one side of the triangle and the extension of an adjacent side.

Front

What is a remote interior angle?

Back

A remote interior angle is an interior angle of a triangle that is not adjacent to a given exterior angle.

Front

If one angle of a triangle is 44 degrees, what is the maximum possible measure of the other two angles?

Back

The maximum possible measure of the other two angles is 136 degrees (180 - 44 = 136).

Front

What is the relationship between an exterior angle and its remote interior angles?

Back

The measure of an exterior angle is equal to the sum of the measures of its two remote interior angles.

Front

If angle A is 44 degrees and angle B is 96 degrees, what is angle C?

Back

Angle C is 40 degrees (180 - 44 - 96 = 40).

Front

What is the definition of corresponding angles?

Back

Corresponding angles are angles that are in the same position on two parallel lines cut by a transversal.

Front

How do you find the measure of an angle when given the measures of the other two angles in a triangle?

Back

Subtract the sum of the known angles from 180 degrees.

Front

What is the measure of an angle if it is an exterior angle and the two remote interior angles are 45 degrees and 35 degrees?

Back

The measure of the exterior angle is 80 degrees (45 + 35 = 80).

Front

If angle x is 87 degrees, what is the measure of its corresponding angle when two parallel lines are cut by a transversal?

Back

The corresponding angle is also 87 degrees.