1A. Point, Lines and Planes

• No, the three points are not collinear.
• Yes, they lie on line MP.
• Yes, they lie on line NP.
• Yes, they lie on line MO.

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• plane FBC
• plane BAD
• plane FEC
• plane FKG

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Points that lie on the same line are _________.

• coplanar
• collinear
• parallel
• perpendicular

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A plane containing point A.

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

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An example of 3 non-collinear points.

• D, E, F

• B, E, C

• F, D, E

• F, B, E

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Name 3 collinear points

• J, K, N

• H, O, L

• J. K, L

• M, H, p

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A line containing  $\cdot$ F

•  $\overleftarrow{D}\overrightarrow{B}$ 
  

•  $\overleftarrow{D}\overrightarrow{E}$  

•  $\overleftarrow{E}\overrightarrow{C}$  

•  $\overrightarrow{BE}$  

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Are points H and D collinear or coplanar?

• Collinear

• Coplanar

• Both

• Neither

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Line a and Line b intersect at what point?

• R

• H

• B

• K

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How many points do you need to make a line?

• 1
• at least 2
• 3
• 4

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