Angle Theorems Practice

Front

What is the Triangle Sum Theorem?

Back

The Triangle Sum Theorem states that the sum of the interior angles of a triangle is always 180°.

Front

Solve for x: 2x + 3 = 11.

Back

x = 4.

Front

What is the measure of angle BAC if angle ABC is 60° and angle ACB is 90°?

Back

Angle BAC = 30°.

Front

Find the measure of the missing angle if one angle is 100° and another is 80°.

Back

The missing angle is 0°.

Front

What is the relationship between complementary angles?

Back

Complementary angles are two angles whose measures add up to 90°.

Front

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

Back

Each angle in an equilateral triangle measures 60°.

Front

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

Back

The other angle measures 60°.

Front

What is the definition of vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

If angle A measures 45°, what is the measure of its complement?

Back

The complement of angle A is 45°.

Front

What is the measure of an angle that is supplementary to a 75° angle?

Back

The supplementary angle measures 105°.