Geometry EOY Review #1

Front

What does it mean for two lines to be parallel?

Back

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

Front

What is a linear pair of angles?

Back

A linear pair of angles are two adjacent angles formed when two lines intersect, and their measures add up to 180°.

Front

How do you find the slope of a line given two points?

Back

Front

What is the relationship between corresponding angles and parallel lines?

Back

If two parallel lines are cut by a transversal, then the corresponding angles are congruent.

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°.

Front

What is the definition of vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect; they are always congruent.

Front

How can you prove that two lines are parallel using alternate interior angles?

Back

If a transversal intersects two lines and the alternate interior angles are congruent, then the lines are parallel.

Front

What is the formula for the slope of a line in slope-intercept form?

Back

Front

If m∠A = (6x - 19)° and m∠B = (11x - 22)°, what is m∠B when ∠A and ∠B form a linear pair?

Back

m∠B = 121°.

Front

Given points C(-1, 9) and D(-7, 1), what is the slope of line CD?

Back