Tools of Geometry: Definitions

Question 1

Point

Answer 1

A location in space given by a set of coordinates. A point has no size.

Question 2

Line

Answer 2

A straight path of points that extends in opposite directions without end. A line has length but no width or depth

Question 3

Plane

Answer 3

A flat surface that extends without end. A plane has area but no thickness

Question 4

Line Segment

Answer 4

The portion of a line between two points.

Question 5

Angle

Answer 5

An angle is formed by two rays with the same starting point. Rays are the sides of the angle. The starting point is the vertex of the angle.

Question 6

Congruent Segments

Answer 6

Congruent segments have the same length

Question 7

Congruent Angles

Answer 7

Congruent angles have the same measure

Question 8

Congruent polygons

Answer 8

Congruent polygons have congruent sides and congruent angles

Question 9

Angle Bisector

Answer 9

A ray that divides an angle into two congruent angles

Question 10

Perpendicular Bisector

Answer 10

A line that divides a line segment into two congruent segments and crosses at a right angle.