Lines, Planes and Perpendicular Lines

Give another name for line k.

• Line BC

• Line BCF

• Line ED

• Line k is the only name, there isn't another name.

A plane containing point A.

• Plane DEA

• Plane k

• Plane CDF

• Plane F

Are points D and E collinear or coplanar?

• Collinear

• Coplanar

How many points do you need to make a line?

• 1

• at least 2

• 3

• 4

In geometry, a plane is a ...

• flat surface

• a flying object

• grassy area

True or False: Line DE lies in plane ABC

• True

• False

True or False: Points B, C, and D are coplanar.

• True

• False

True or False: Points A, B, and C are coplanar.

• True

• False

True or False: Points A, B, and C are collinear.

• True

• False

A line that extends from a point in one direction and travels forever is called a ...

• perpendicular line

• line segment

• ray

• parallel line