Lesson 1 1 Points Lines and Planes Ohio

Lesson 1 -1 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: simply a location

Vocabulary: • Line:

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

Vocabulary: • Collinear:

Vocabulary: • Collinear: points on the same line

Vocabulary: • Plane:

Vocabulary: • Plane: flat surface made up of points

Vocabulary: • Coplanar:

Vocabulary: • Coplanar: Points that lie on the same plane

Use the figure to name each of the following:

Use the figure to name each of the following: J K L M

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

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

Name the geometric shape modeled by each object.

Name the geometric shape modeled by each object. • the long hand on a clock

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

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

Vocabulary:

Vocabulary: • Undefined terms:

Vocabulary: • Undefined terms: terms only explained using examples and descriptions

Draw and label a figure for each relationship.

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.

A B C S D

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

A B C S D • How many planes appear in this figure? • Name three points that are collinear.

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

A B C S D • 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?

Assignment: Pgs. 9 - 11 14 - 46 evens