Triangle Interior and Exterior Angles Practice

Front

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

Back

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

Front

What are remote interior angles in relation to an exterior angle?

Back

Remote interior angles are the two interior angles of a triangle that are not adjacent to the exterior angle.

Front

If one angle of a triangle measures 45 degrees, what is the maximum measure of the other two angles?

Back

The maximum measure of the other two angles combined is 135 degrees, since the total must equal 180 degrees.

Front

What is the measure of an exterior angle of a triangle?

Back

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

Front

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

Back

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

Front

What is the relationship between the angles in a right triangle?

Back

In a right triangle, one angle measures 90 degrees, and the sum of the other two angles is 90 degrees.

Front

If angle A measures 34 degrees and angle B measures 45 degrees, what is the measure of angle C in triangle ABC?

Back

Angle C measures 101 degrees, since 180 - (34 + 45) = 101.

Front

What is the definition of an interior angle in a triangle?

Back

An interior angle in a triangle is formed by two sides of the triangle and is located inside the triangle.

Front

What is the definition of an exterior angle in a triangle?

Back

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

Front

How can you determine if a triangle is valid based on its angles?

Back

A triangle is valid if the sum of its interior angles equals 180 degrees.