Points, Lines, and Planes

A plane containing point A.

• Plane DEA
• Plane k
• Plane CDF
• Plane F

Name a set of opposite rays

• Ray BC and Ray CD

• Ray ED and Ray DC

• Ray BA and Ray BE

• Ray AB and Ray EB

Name 3 collinear points

• HMN

• IKN

• MJO

• HNI

Give another name for line k.

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

Why do three points SOMETIMES determine a plane?

• The three points have to be collinear to determine a plane.

• The three points have to be noncollinear to determine a plane.

• Sometimes? They ALWAYS determine a plane.

Name the intersection of Line c and Plane R

• Point J
• Line HK
• Point K
• Line MN

A line contains at least how many points

• 1

• 2

• 3

• 4

What is another name for line p?

Which is NOT a possible name for the plane containing lines n and p?

• plane ADC

• plane G

• plane ABe

• Plane ABC

How many planes are in the figure?

• 4

• 5

• 3

• 6