Angles in a Triangle/Transversal

Front

What is an angle whose measure is exactly 90 degrees called?

Back

Right angle.

Front

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

Back

180 degrees.

Front

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

Back

The sum of their measures is 90 degrees.

Front

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

Back

Each angle measures 60 degrees.

Front

What is a transversal in relation to parallel lines?

Back

A transversal is a line that intersects two or more lines at different points.

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of the transversal and inside the two lines.

Front

What is the relationship between corresponding angles when two parallel lines are cut by a transversal?

Back

Corresponding angles are equal.

Front

How do you find 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

What is the formula to find the value of x in the equation 8X - 17 = 5X + 19?

Back

To solve for x, rearrange the equation to isolate x: 8X - 5X = 19 + 17.

Front

What is the definition of supplementary angles?

Back

Two angles whose measures add up to 180 degrees.