Chpt 7

Question 1

Define point

Answer 1

An exact positionin space

Question 2

Define line

Answer 2

An infinite set of points forming a straight path extending in two directions.

Question 3

Define ray

Answer 3

A line that has one endpoint and continues infinitely in one direction

Question 4

Define line segment

Answer 4

A part of a line that has two endpoints and includes all the points between those endpoints

Question 5

Define plane

Answer 5

A collection of points that form a flat surface infinitly wide and long

Question 6

Define intersection

Answer 6

A point where two lines meet or cross

Question 7

Define perpendicular line

Answer 7

A line in which meets or crosses another line of 90o angle

Question 8

Define parallel lines

Answer 8

Lines which are always the same distance apart

Question 9

Define angle

Answer 9

Two rays that share two endpoints

Question 10

Define bisect

Answer 10

To cut in half

Question 11

Define straight line

Answer 11

A tool with a straight edge used to straight lines

Question 12

Define perpendicular bisector

Answer 12

A line which meets or crosses another line at 90o degree angle and cuts the line in half

Question 13

Define congruent

Answer 13

Same size and shape

Question 14

Angle bisector

Answer 14

A line that cuts an angle equaly in half

Question 15

Define median

Answer 15

Line drawn from a vertex of a triangle to the midpoint of tge opposite side

Question 16

Define centroid

Answer 16

The middle of the triangle itself, which would also be the center of gravity.

Question 17

Define incenter

Answer 17

The center of the circle that can be inscribed in a triangle

Question 18

Define circumcenter

Answer 18

The center of the circle that passes through all vertices of a triangle

Question 19

Define transformations

Answer 19

Rules for moving each point of figure in the plane to a new location

Question 20

Define translation

Answer 20

Transformation that slides a given figure a given distance and direction

Question 21

Define reflection

Answer 21

A transformation that creates a mirror image of a given figure on the opposite side of a line

Question 22

Define rotation

Answer 22

A transformation in which a figure is is turned a given angle and direction around around a certain point