Front

What is the sum of the angles in a triangle?

Back

Front

How do you find the measure of the third angle in a triangle?

Back

Front

What does it mean for two lines to be perpendicular?

Back

Front

Back

Front

What is a perpendicular bisector?

Back

A perpendicular bisector is a line that divides a segment into two equal parts at a right angle.

Front

What is the definition of a congruent segment?

Back

Congruent segments are segments that have the same length.

Front

How do you determine if two lines are parallel?

Back

Two lines are parallel if they have the same slope and will never intersect.

Front

What is the formula for the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Front

What is the relationship between the slopes of two perpendicular lines?

Back

The product of the slopes of two perpendicular lines is -1.

Front

What is an angle bisector?

Back

An angle bisector is a ray that divides an angle into two equal angles.