Geometry Final Review Part 1

Front

What are parallel lines?

Back

Lines in a plane that never meet and are always the same distance apart.

Front

What is a transversal?

Back

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

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are equal.

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of the transversal and outside the two lines; they are equal when the lines are parallel.

Front

What are supplementary angles?

Back

Two angles whose measures add up to 180 degrees.

Front

How do you find the measure of an angle when two parallel lines are cut by a transversal?

Back

Use the properties of corresponding, alternate interior, or alternate exterior angles.

Front

If m∠1 = 83°, what is m∠2 if ∠1 and ∠2 are alternate interior angles?

Back

m∠2 = 83°.

Front

If m∠1 = 83°, what is m∠2 if ∠1 and ∠2 are same-side interior angles?

Back

m∠2 = 97°.

Front

What is the midpoint of a line segment?

Back

The point that divides the segment into two equal parts.

Front

How do you find the midpoint of a segment with endpoints P and R?

Back

Midpoint Q = (x1 + x2)/2, (y1 + y2)/2.