Triangle Interior and Exterior Angles Practice

Front

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

Back

180 degrees.

Front

If two angles of a triangle are 30 degrees and 70 degrees, what is the measure of the third angle?

Back

80 degrees.

Front

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

Back

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

Front

What is the measure of angle b if the options are 146, 34, 36, 136 and the correct answer is 34?

Back

Angle b measures 34 degrees.

Front

Which angles are remote interior angles to angle d if the options are Angle a and Angle b, Angle b and Angle c, Angle a and Angle c, Angle a and Angle b and Angle c?

Back

Angle a and Angle b.

Front

What is the measure of angle b if the options are 36°, 56°, 63°, 117° and the correct answer is 36°?

Back

Angle b measures 36 degrees.

Front

What is an exterior angle of a triangle?

Back

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

Front

How do you calculate the measure of an exterior angle?

Back

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

Front

What is the relationship between the interior angles and the exterior angles of a triangle?

Back

Each exterior angle is equal to the sum of the two opposite interior angles.

Front

If one angle of a triangle is 90 degrees, what type of triangle is it?

Back

It is a right triangle.