Geometry Points Lines & Angles 5

Question 1

An angle measures 15°. Which type is it?

Accepted Answer

Acute

Answer

An angle less than 90° is acute.

Question 2

If two angles are adjacent, they must share a common vertex and what else?

Accepted Answer

A common side

Answer

Adjacent angles share a common vertex and a common side but no interior points.

Question 3

The measure of the angle whose complement is 22° is what?

Accepted Answer

68°

Answer

Its complement is 22°, so the angle is 90 − 22 = 68°.

Question 4

Lines that do not lie in the same plane and never intersect are called what?

Accepted Answer

Skew lines

Answer

Skew lines are non-coplanar and never meet.

Question 5

A flat, two-dimensional surface that extends infinitely in all directions is a what?

Accepted Answer

Plane

Answer

A plane is a flat surface with no thickness extending infinitely.

Geometry Practice Test