2.1 Exploring Patterns

Question 1

Ray

Answer 1

The ray AB consists of the initial point A and all points on line AB that lie on the same side of A that B lies

Question 2

Opposite Rays

Answer 2

On the line AB is C is between A and B, then ray CA and CB are opposite rays

Question 3

Collinear

Answer 3

Points, segments, or rays that are on the same line

Question 4

Angle

Answer 4

Consists of 2 different rays that have the same initial point. The rays are the sides of the angle and the initial point is the vertex of the angle.

Question 5

Acute angle

Answer 5

An angle with a measure greater than 0 degrees and less than 90 degrees

Question 6

Right angle

Answer 6

An angle with a measure of 90 degrees

Question 7

Obtuse angle

Answer 7

An angle with a measure greater than 90 degrees and less than 180 degrees

Question 8

Straight angle

Answer 8

An angle that measures 180 degrees

Question 9

Interior of an angle

Answer 9

Every nonstraight angle has an interior. A point D is in the interior of angle A if it is between points that lie on each side of the angle.

Question 10

Exterior of an angle

Answer 10

Every nonstraight angle has an exterior. A point D is in the exterior of angle A if it is not on the angle or in the interior of the angle.

Question 11

Adjacent angles

Answer 11

Two angles are adjacent if they share a common vertex and side, but have no common interior points.

Question 12

Line Segment

Answer 12

Segment AB consists of the endpoints A and B and all points on the line AB that lie between A and B.