Name points, lines, planes, segments and rays. Identify intersections of lines and planes.
Upper case and lower case MATTER when naming lines and rays!
-A line is named with EITHER one lower case letter or two upper case letters.
-Rays and line segments must be named with two upper case letters only.
-The direction the ray symbol is pointing in your label matters! It must match the diagram.
-Planes are named using EITHER one upper case letter that is not a point OR three upper case letters.
Match each term to the definition.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Line Segment | arrow_right_alt | No dimension. A dot. |
Plane | arrow_right_alt | One dimension. Extends in both directions with no end. |
Intersection | arrow_right_alt | Two dimensional, extends in both directions with no end. |
Point | arrow_right_alt | Points that lie on the same line. |
Line | arrow_right_alt | Points that lie in the same plane. |
Ray | arrow_right_alt | Line that has two endpoints. |
Opposite rays | arrow_right_alt | One endpoint with a line that extends in only one direction with no end. |
Coplanar | arrow_right_alt | Two rays that share an endpoint, extend in opposite directions, and are on the same line. |
Collinear | arrow_right_alt | A point or set of points in common. |
Name two points. Remember name a point using one capital letter.
Name two lines. Remember a line can be named using two capital letters with the line symbol on top. (arrows going in both directions.)
Name the plane that contains the point A, B and E. Remember a plane is named either using:
Three capital letters that are NOT on the same line OR
One capital letter that is NOT a point.
Give two other possible names for
Hints:
1) Use different capital letters that are on that line OR
2) Switch M and N OR
3) Use one lower case letter to name a line.
Name three points that are collinear.
Name three points that are coplanar and NOT collinear.
Name a point that is NOT coplaner with point V, M and P.
Sketch a picture.
Sketch a picture.
Sketch a picture.
Sketch a picture.
Name a point that is coplaner with A, D and G.
Name the intersection of plane HEG and plane DFE.
Name a point that is collinear with BH.
Name one ray. Be sure to use the correct symbol.
Name one line segment. Be sure to use the correct symbol.
Give one name for the plane.
Name two points that are collinear.
EXTENSION: (Complete Extension problems for a score of a 4, these are optional.)
Name the intersection of plane VWX and plane TYX.
EXTENSION:
Name three planes that intersect at point X.
EXTENSION:
Are there any places where at least four planes intersect? Explain.
Rate your understanding on naming points, lines and planes.
