2.1 Exploring Patterns

Question 0

Ray

Answer 0

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

Question 1

Line Segment

Answer 1

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

Question 2

Opposite Rays

Answer 2

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

Question 3

Collinear

Answer 3

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

Question 4

Angle

Answer 4

An angle consists of two 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 whose measure is greater than 0 and less than 90

Question 6

Obtuse Angle

Answer 6

An angle whose measure is greater than 90 and less than 180

Question 7

Right Angle

Answer 7

An angle whose measure is 90

Question 8

Straight Angle

Answer 8

An angle with a measure of 180

Question 9

Interior of an Angle

Answer 9

Every non-straight 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 non-straight 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