Points, Lines, and Planes

Author:amiller_pavcs, Jean Falkner, Alicia Chilton

The applet below shows a two-dimensional and three-dimensional model of the same points, lines, and planes. Spend a few minutes exploring the objects and how they interact with each other when you move them. Then answer the questions below.

Name three noncollinear points.

Select all that apply

A
D, E, H
B
H, B, K
C
A, C, F

Check my answer (3)

Name the line containing point E.

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Line CG intersects line AE at _________.

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Line FJ and line GK intersect at _______.

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Two lines intersect at ______.

Select all that apply

A
a plane
B
a point
C
a line

Check my answer (3)

How many distinct lines can be drawn between points E and G?

Select all that apply

A
0
B
1
C
2
D
an infinite number

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Give one name for the gray plane.

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If you draw a line between points F and B, would it be located on the gray plane? (Hint: Think of the gray plane as a piece of paper that already has points F and B drawn on it.)

Select all that apply