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 the relationship between an exterior angle and the two remote interior angles?

Back

The exterior angle is equal to the sum of the two remote interior angles.

Front

If one angle of a triangle measures 40 degrees and another measures 60 degrees, what is the measure of the third angle?

Back

The third angle measures 80 degrees.

Front

What is an interior angle of a triangle?

Back

An interior angle of a triangle is an angle formed by two sides of the triangle that is located inside the triangle.

Front

How do you find the measure of an unknown angle in a triangle?

Back

To find the measure of an unknown angle, subtract the sum of the known angles from 180 degrees.

Front

What is a corresponding angle?

Back

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

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 angle A is 62 degrees and angle B is 54 degrees, what is angle C?

Back

Angle C is 64 degrees.

Front

What is the measure of an exterior angle if the remote interior angles are 30 degrees and 50 degrees?

Back

The exterior angle measures 80 degrees.