building blocks of geometry

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Building Blocks of Geometry How do you explain the basic terms of geometry?

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Page 1: Building blocks of geometry

Building Blocks of Geometry

How do you explain the basic terms of geometry?

Page 2: Building blocks of geometry

A location. Without size. Represented by a dot. Named by a capital letter.

What is a point?

“Point A”

Page 3: Building blocks of geometry

The set of all points.

What is space?

Page 4: Building blocks of geometry

A series of points that extends in two opposite directions without end.

You can name a line by any two points on the line with a little line symbol above them.

What is a line?

A

B

Page 5: Building blocks of geometry

What is a plane?

Planes are usually represented by a shape that looks like a tabletop or a parallelogram. 

A plane is named by a single letter (plane m) or by three points (plane ABC).

Has no thickness and extends forever.

Page 6: Building blocks of geometry

Part of a line.

Has one endpoint and extends forever in one direction.

What is a ray?

Page 7: Building blocks of geometry

Part of a line or ray that extends from one endpoint to another.

What is a line segment?

Page 8: Building blocks of geometry

Three points

Two lines

A plane

Identify the figures in the diagram.

Page 9: Building blocks of geometry

Three rays

Two line segments

Identify the figures in the diagram.

Page 10: Building blocks of geometry

Identify the line segments that are congruent in the figure.