Geometry Midterm Review

Front

What is the principle that states when two lines are intersected by a transversal and the corresponding angles are congruent, the lines are parallel?

Back

This principle is known as the Corresponding Angles Postulate.

Front

What is an angle bisector?

Back

An angle bisector is a line or ray that divides an angle into two equal parts.

Front

In triangle geometry, what does it mean if BC is the perpendicular bisector of AD?

Back

It means that BC intersects AD at a right angle and divides AD into two equal segments.

Front

What cannot always be proven if BC is the perpendicular bisector of AD?

Back

BC ≅ CD cannot always be proven.

Front

What type of triangle is defined by having two sides of equal length?

Back

An isosceles triangle.

Front

If m∠A = 3x + 1, m∠B = 4x - 17, and m∠C = 5x - 20, how do you determine the type of triangle?

Back

You can determine the type of triangle by solving for x and checking the side lengths or angle measures.

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 degrees.

Front

What is the definition of perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Front

What is the definition of parallel lines?

Back

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

Front

What is the relationship between alternate interior angles when two lines are parallel?

Back

Alternate interior angles are congruent when two lines are parallel.