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Geometry - PowerPoint PPT Presentation


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Geometry. Point Line Line segment Ray Plane Parallel lines Intersecting lines Angles. Point An exact location in space Line An endless collection of points along a straight path Line segment Part of a line that has two endpoints. . A. Geometry. Ray

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Presentation Transcript
geometry
Geometry
  • Point
  • Line
  • Line segment
  • Ray
  • Plane
  • Parallel lines
  • Intersecting lines
  • Angles
geometry2
Point

An exact location in space

Line

An endless collection of points along a straight path

Line segment

Part of a line that has two endpoints

.A

Geometry
geometry3
Ray

Part of a line that has one endpoint and extends endlessly in the other direction

Plane

An endless, flat surface that is named by any three points not on the same line.

Geometry

.A

.C

.B

geometry4
Parallel Lines

Lines do not intersect but are in the same plane

Intersecting Lines

Lines meet at one point

Perpendicular Lines

Lines form a right angle

Geometry
angles
Angles
  • An angleis formed when two rays have the same endpoint.
  • This endpoint is called the vertex.
  • The two rays that form the angle are called sides.
angles6
Angles
  • There are four types of angles
    • Right angle
    • Straight angle
    • Acute angle
    • Obtuse angle
right angles
Forms a square corner

Forms a 90 degree angle.

Use a corner of your index card to make sure you a have a right angle

Right Angles

90 degrees

straight angle
Forms a straight line

Angle is 180 degrees

Use the edge of your index card to make sure you have a straight angle.

180 degrees

Straight Angle
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Ray

Parallel lines

Line

1.

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2.

3.

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Acute angle

Line segment

Point

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4.

5.

6.

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ReviewName each picture

Intersecting lines

Perpendicular and Intersecting lines

Plane