Interior and Exterior Angles of Triangles

Front

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______.

Back

180°

Front

What kind of triangle has one angle greater than 90°?

Back

Obtuse

Front

If one angle of a triangle measures 40° and another measures 110°, what is the measure of the third angle?

Back

30°

Front

In a triangle, if angle A = 34° and angle B = 146°, what is the measure of angle C?

Back

36°

Front

What is the measure of an exterior angle of a triangle if the two remote interior angles are 34° and 36°?

Back

70°

Front

What type of triangle has all angles less than 90°?

Back

Acute

Front

If a triangle has angles measuring 90°, 45°, and 45°, what type of triangle is it?

Back

Right

Front

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

Back

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

Front

If angle A = 60° and angle B = 50°, what is angle C in triangle ABC?

Back

70°

Front

In triangle XYZ, if angle X = 80° and angle Y = 50°, what is angle Z?

Back

50°