2.1 Exploring Patterns

Question 0

ray

Answer 0

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

Question 1

line segment

Answer 1

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

Question 2

opposite rays

Answer 2

if C is between A and B then ray CA and ray CB or opposite rays

Question 3

collinear

Answer 3

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

Question 4

angle

Answer 4

an angle consists of two different rays that have the same initial point. the rays are the sides and the initial point is the vertex of the angle

Question 5

acute angle

Answer 5

greater than 0 degrees and less than 90 degrees

Question 6

right angles

Answer 6

measure of 90 degrees

Question 7

obtuse angle

Answer 7

greater than 90 degrees and less than 180 degrees

Question 8

straight angle

Answer 8

measure of 180 degrees

Question 9

interior of an angles

Answer 9

every non-straight angle has an interior. 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 on 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

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