Geometry Terminology

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created 2 years ago by dxxxsjsj
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These cards will help students get to know the teminology needed for Geometry.
Subjects:
math, geometry
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1

Point

has no size; length, width, or height. It is represented by a dot and named by a capital letter

2

Line

set of points which has infinite length but no width or height. A line is named by a lower case letter or by any two points on the line

3

Plane

set of points that has infinite length and width but no height. We name a plane with a capital letter

4

Collinear Points

points that lie on the same line

5

Noncollinear points

points that do not lie on the same plane

6

Segment

part of a line that consists of two points called endpoints and all points between them

7

Ray

is the part of a line that contains an endpoint and all points extending in the other direction

8

Acute Angle

angle whose measure is between 0 degrees and 90 degrees

9

Right Angle

angle whose measure is 90 degrees

10

Obtuse Angle

angle whose measure is greater than 90 degrees but less than 180 degrees

11

Straight Angle

angle whose measure is 180 degrees