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Notice that the image of airplace wings looks a lot like two planes in geometry? You will use this image to review information from this lesson.
R, S, and ___ are collinear points.
Answer: T
A, U, and ___ are coplanar points.
Answer: T
Name the point "between" points R and T. ___
Answer: S
What is another name for line m? ___
Answer: line DC; There a multiple responses: line DC, line DB, line DA, line CB, line CA, and line BA.
Which point is the intersection of lines AD and SB? ___
Answer: B
Name 1 point that does not lie in plane ATU. ___
Answer: R; There are multiple responses: R, S, D, C, and B.
Does line n lie in plant ATU? Yes or No?
Answer: No, line n does not lie in plane ATU, but it does intersect the plane at point T.
- A ______ has two endpoints.
- segment
- line
- ray
Answer: a. segment
- A location in space is the definition of a ____________.
- dot
- point
- line
Answer: b. point
- You can name a plane with ___________.
- three collinear points in the plane
- three points in the plane
- three noncollinear points in the plane
Answer: c. three noncollinear points in the plane
- Name a line in this diagram
- line BE
- line AFC
- line FA
Answer: a. line BE
- Which of these is a line segment?
- figure 1
- figure 2
- figure 3
Answer: a. figure 2
- undefined term in geometry that represents location
- point
- line
- plane
Answer: a. point
- undefined term that is made up of infinitely many points
- point
- line
- plane
Answer: b. line
- undefined term for a flat surface made up of infinite points
- point
- line
- plane
Answer: c. plane
- points on the same line
- space
- coplanar
- collinear
Answer: c. collinear
- points on the same plane
- space
- coplanar
- collinear
Answer: b. coplanar
- boundless, three-dimensional set of all points
- space
- coplanar
- collinear
Answer: a. space
- where two or more geometric figures cross
- intersection
- ray
- line
Answer: a. intersection
- part of a line that has one endpoint
- intersection
- ray
- line
Answer: b. ray
Perpendicular Lines Practice
All the practice problems relate to this image.
Exercise #1
Let’s see if you can identify other parallel and skew lines on the figure. Compare these two lines. Are they parallel or skew?
and
Answer: skew
Exercise #2
What about these line segments? Are they perpendicular?
and
Answer: Yes, these lines are perpendicular.
Exercise #3
Now, let's look at planes. Are planes SOP and TSR parallel or penpendicular?
Answer: These planes are perpendicular.
Exercise #4
Are planes QTS and MNO parallel or penpendicular?
Answer: These planes are parallel.
Exercise #5
What about these line segments? Are they skew or parallel?
and
Answer: These lines are parallel.