Chapters 1 and 2

Question 1

Point

Answer 1

Tells where the location of something is.

Question 2

Line

Answer 2

Any two points that form a line that constantly goes in two directions; has no endpoints.

Question 3

Line Segment

Answer 3

A line that does not constantly go in two directions; has two endpoints.

Question 4

Ray

Answer 4

Line that only has one endpoint and constantly goes in the other direction.

Question 5

Plane

Answer 5

A 2-D flat surface; goes forever

Question 6

Co-linear

Answer 6

Multiple points that are on the same line.

Question 7

Co-planar

Answer 7

Multiple points that are on the same plane.

Question 8

Intersection

Answer 8

The occurrence when two lines intersect at one point.

Question 9

Congruent

Answer 9

To have the same measure

Question 10

Vertex

Answer 10

Point where an angle turns

Question 11

Acute

Answer 11

Angle that is less than 90 degrees

Question 12

Obtuse

Answer 12

Angle that is greater than 90 degrees

Question 13

Right Angle

Answer 13

Angle that equals 90 degrees

Question 14

Congruent Angles

Answer 14

Angles that have the same measure (marked with an arch)

Question 15

Bisect

Answer 15

Cut into equal pieces

Question 16

Supplementary

Answer 16

Angles that add to 180 degrees

Question 17

Complimentary

Answer 17

Angles that add to 90 degrees

Question 18

Vertical Angles

Answer 18

Angles that are congruent and intersecting

Question 19

Adjacent Angles

Answer 19

Angles that share a side

Question 20

Perpendicular

Answer 20

A cross or intersection of 90 degrees