Practice test

Front

What is an angle bisector?

Back

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

Front

How do you determine if three lengths can form a triangle?

Back

Use the triangle inequality theorem: the sum of the lengths of any two sides must be greater than the length of the third side.

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Front

What is the formula for finding the measure of an arc intercepted by an angle?

Back

The measure of the arc is equal to the measure of the angle that intercepts it.

Front

What is a perpendicular bisector?

Back

A perpendicular bisector is a line that divides a segment into two equal parts at a 90-degree angle.

Front

What is the triangle inequality theorem?

Back

The triangle inequality theorem states that for any triangle, the sum of the lengths of any two sides must be greater than the length of the third side.

Front

What are the possible side lengths of a triangle?

Back

The lengths must satisfy the triangle inequality theorem.

Front

What is the definition of a midpoint?

Back

A midpoint is the point that divides a segment into two equal parts.

Front

What is the relationship between angles and their bisectors?

Back

An angle bisector creates two angles that are equal in measure.

Front

If x + 35 = 115, what is the value of x?

Back

x = 80.