Topic 3 Review

Front

What is the definition of a midpoint?

Back

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

Front

If B is the midpoint of AC, what is the relationship between AB and BC?

Back

AB = BC; they are equal in length.

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What are vertical angles?

Back

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

Front

What is a linear pair of angles?

Back

A linear pair of angles consists of two adjacent angles that form a straight line, and their measures add up to 180 degrees.

Front

Solve for x: 2x + 4 = 20

Back

x = 8.

Front

Solve for x: 3x - 5 = 10

Back

x = 5.

Front

If angle A and angle B are complementary and angle A measures 35 degrees, what is the measure of angle B?

Back

Angle B = 55 degrees.

Front

If angle C and angle D are supplementary and angle C measures 70 degrees, what is the measure of angle D?

Back

Angle D = 110 degrees.