Triangle Sum Theorem & Angles

Front

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

Back

180°

Front

If two angles are complementary and one angle measures 30°, what is the measure of the other angle?

Back

60°

Front

In a triangle, if one angle measures 45° and another angle measures 60°, what is the measure of the third angle?

Back

75°

Front

If two angles are supplementary and one angle measures 120°, what is the measure of the other angle?

Back

60°

Front

What is the definition of complementary angles?

Back

Two angles that add up to 90°.

Front

What is the definition of supplementary angles?

Back

Two angles that add up to 180°.

Front

If one angle in a triangle measures 90°, what type of triangle is it?

Back

Right triangle.

Front

What is the measure of each angle in an equilateral triangle?

Back

60°.

Front

If a triangle has angles measuring 30° and 60°, what is the measure of the third angle?

Back

90°.

Front

What is the relationship between the angles in a triangle?

Back

The sum of the angles in a triangle is always 180°.