Points, Lines, and Planes

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Presentation transcript:

Points, Lines, and Planes Lesson 1-2 Points, Lines, and Planes

Ohio Content Standards:

Ohio Content Standards: Formally define geometric figures.

Ohio Content Standards: Formally define geometric figures. Recognize and explain the necessity for certain terms to remain undefined, such as point, line and plane.

Vocabulary:

Vocabulary: Point :

Vocabulary: Point : Has no size : Named by using capitol letters

Vocabulary: Line :

Vocabulary: Line : Made up of an infinite number of points : Arrows show that the line extend without end in both directions : Can be named with a single lowercase script letter or by two points on a line

Use the figure below:

Use the figure below: d A B

Use the figure below: d A B Name two points on the line.

Use the figure below: Name two points on the line. d A B Name two points on the line. Give three names for the line.

Vocabulary:

Vocabulary: Collinear :

Vocabulary: Collinear : Points that lie on the same line

Vocabulary: Noncollinear :

Vocabulary: Noncollinear : Points that DO NOT lie on the same line

Name three points that are collinear and three points that are noncollinear.

Name three points that are collinear and three points that are noncollinear. Q

Vocabulary:

Vocabulary: Ray :

Vocabulary: Ray : Has a starting point and extends forever in one direction.

Vocabulary: Line segment :

Vocabulary: Line segment : Part of a line containing two endpoints and all points between them : Is named using its endpoints

Vocabulary: Plane :

Vocabulary: Plane : A flat surface that extends without end in all directions

Vocabulary: Coplanar :

Vocabulary: Coplanar : Points that lie in the same plane

Vocabulary: Noncoplanar :

Vocabulary: Noncoplanar : Points that DO NOT lie in the same plane

Name three line segments and one ray. F G

Assignment: Pgs. 16 – 17 2 – 28 evens 34 – 38 evens