3.2 BigIdeasMath Triangle/Exterior angle review Short flashcard

Front

What is the relationship between the numbered angles?

Back

Corresponding angles are angles that are in the same position on different parallel lines cut by a transversal.

Front

If two of the angles of a triangle are 30 and 70 degrees, what is the measure of the third angle?

Back

The third angle measures 80 degrees because the sum of angles in a triangle is always 180 degrees.

Front

Find the measure of the indicated angle if it is 45 degrees.

Back

The indicated angle measures 45 degrees.

Front

In a triangle, how many total degrees are there?

Back

A triangle has a total of 180 degrees.

Front

Which two angles are the remote interior angles to Angle W?

Back

The remote interior angles to Angle W are Angle X and Angle Y.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in the same relative position at each intersection where a straight line crosses two others.

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

What is an exterior angle of a triangle?

Back

An exterior angle of a triangle is formed by one side of the triangle and the extension of an adjacent side.

Front

How do you find the measure of an exterior angle?

Back

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

Front

What is the relationship between interior and exterior angles?

Back

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