Lesson 1-1 Points, Lines, and Planes. Ohio Content Standards:

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Presentation transcript:

Lesson 1-1 Points, Lines, and Planes

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:Point:

Vocabulary: simply a location

Vocabulary: Line:Line:

Vocabulary: made up of points and has no thickness or width

Vocabulary: Collinear:Collinear:

Vocabulary: points on the same line

Vocabulary: Plane:Plane:

Vocabulary: flat surface made up of points

Vocabulary: Coplanar:Coplanar:

Vocabulary: Points that lie on the same plane

Use the figure to name each of the following:

J L K M

a line containing point K J L K M

Use the figure to name each of the following: a line containing point K a plane containing point L J L K M

Name the geometric shape modeled by each object.

the long hand on a clockthe long hand on a clock

Name the geometric shape modeled by each object. the long hand on a clockthe long hand on a clock a 10 X 12 patioa 10 X 12 patio

Name the geometric shape modeled by each object. the long hand on a clockthe long hand on a clock a 10 X 12 patioa 10 X 12 patio the location where the corner of a driveway meets the roadthe location where the corner of a driveway meets the road

Vocabulary:

Vocabulary: Undefined terms:Undefined terms:

Vocabulary: terms only explained using examples and descriptions

Draw and label a figure for each relationship.

plane R contains lines AB and DE, which intersect at point P. Add point C on plane R so that it is not collinear with AB or DE.

Draw and label a figure for each relationship. plane R contains lines AB and DE, which intersect at point P. Add point C on plane R so that it is not collinear with AB or DE. QR on a coordinate plane contains Q(-2, 4) and R(4, -4). Add point T so that T is collinear with these points.

D C B A S

How many planes appear in this figure? D C B A S

Name three points that are collinear. D C B A S

How many planes appear in this figure? Name three points that are collinear. Are points A, B, C, and D coplanar? Explain. D C B A S

How many planes appear in this figure? Name three points that are collinear. Are points A, B, C, and D coplanar? Explain. At what point do DB and CA intersect? D C B A S

Assignment: Pgs evens