12/19 Review V2 (Make up)

Front

What are the slopes of perpendicular lines?

Back

The slopes of perpendicular lines are opposite reciprocals.

Front

Which angles are vertical angles?

Back

Vertical angles are angles that are opposite each other when two lines intersect.

Front

Find the slope of a line perpendicular to the line: y = 2x + 4

Back

The slope of a line perpendicular to y = 2x + 4 is -1/2.

Front

Which two lines are perpendicular?

Back

Line A and Line B are perpendicular.

Front

What type of angle is greater than 90 degrees but less than 180 degrees?

Back

An obtuse angle.

Front

Define a slope in the context of a line.

Back

The slope of a line is a measure of its steepness, calculated as the rise over run.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

If two lines have slopes of 3 and -1/3, what can be said about their relationship?

Back

The lines are perpendicular because their slopes are opposite reciprocals.

Front

What is the sum of the angles in a triangle?

Back

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