Missing angles

Front

What is the sum of the angles in a triangle?

Back

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

Front

What is the definition of a complementary angle?

Back

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

Front

What is the definition of a supplementary angle?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

If one angle measures 27 degrees, what is the measure of its complementary angle?

Back

The complementary angle measures 63 degrees.

Front

If two angles are supplementary and one measures 66 degrees, what is the measure of the other angle?

Back

The other angle measures 114 degrees.

Front

What is the relationship between angles in a linear pair?

Back

Angles in a linear pair are supplementary, meaning they add up to 180 degrees.

Front

How do you find the measure of an unknown angle in a triangle if you know the other two angles?

Back

Subtract the sum of the known angles from 180 degrees.

Front

What is the value of x if angle 1 is 28 degrees and angle 2 is x degrees in a triangle?

Back

x = 180 - (28 + angle 2).

Front

What is the formula for finding the measure of an exterior angle of a triangle?

Back

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

Front

If angle A is 20 degrees and angle B is 30 degrees, what is the measure of angle C in triangle ABC?

Back

Angle C = 180 - (20 + 30) = 130 degrees.