Geometry Points Lines & Angles 2

Question 1

Two angles are complementary. If one measures 37°, what does the other measure?

Accepted Answer

53°

Answer

Complementary angles sum to 90°, so 90 − 37 = 53°.

Question 2

What is the measure of an angle that is supplementary to a 118° angle?

Accepted Answer

62°

Answer

Supplementary angles sum to 180°, so 180 − 118 = 62°.

Question 3

A line segment has two endpoints. What is the correct term for a part of a line that has one endpoint and extends infinitely in one direction?

Accepted Answer

Ray

Answer

A ray has exactly one endpoint and continues without end in one direction.

Question 4

When two lines intersect, the angles opposite each other are called what?

Accepted Answer

Vertical angles

Answer

Vertical angles are the opposite angles formed by two intersecting lines and are always equal.

Question 5

An angle measures exactly 90°. What type of angle is it?

Accepted Answer

Right angle

Answer

An angle of exactly 90° is a right angle.

Geometry Practice Test