Geometry - review for flashcard 5.1

Front

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

Back

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

Front

If two angles are complementary, what is the relationship between them?

Back

Two angles are complementary if the sum of their measures is 90 degrees.

Front

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

Back

Each angle in an equilateral triangle measures 60 degrees.

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Front

If two angles are supplementary, what is the relationship between them?

Back

Two angles are supplementary if the sum of their measures is 180 degrees.

Front

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

Back

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

Front

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

Back

To find the measure of an unknown angle in a triangle, subtract the sum of the known angles from 180 degrees.

Front

What is the definition of a vertical angle?

Back

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

Front

What is the relationship between the angles in a linear pair?

Back

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

Front

What is the measure of angle A if angle B is 44 degrees and they are complementary?

Back

Angle A measures 46 degrees.