I still don't get these Qs: Imagine you have been called as a expert witness...

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Use the following scenario for questions 14 and 15.


Imagine you have been called as a expert witness in a court case. Your expertise is in the area of planes (not airplanes, just planes in geometry). You have been asked the following questions. Your task is to convince the jury that there is, in fact, a plane. You must prove all three of the definitions of a plane given in Lesson 1. You may need to include some other definitions such as the definition of an angle, a ray, etc.


These are the three definition


-three points that are not collinear
-a line and a point not lying on the line
-two lines which intersect in a single point or are parallel


14. Question from the lawyer: "Dr. Expert, I only see three parallel lines here. Terry said that having these three parallel lines mean you have at least one plane. I enter Exhibit A which shows three definitions of a plane. From what I see, none of these definitions say that three parallel lines define a plane. Explain how the definitions in Exhibit A prove that you have at least one plane given three parallel lines." (This question is worth 3 points.)




15. Question from the lawyer: "Dr. Expert, I only see an angle between 0° and 180° here. Kelly said that having this angle means you have a plane. I enter Exhibit A which shows three definitions of a plane. From what I see, none of these definitions say that an angle defines a plane. Explain how the definitions in Exhibit A prove that an angle defines a plane." (This question is worth 3 points.)
 
the definitions of a plane given in Lesson 1 …

These are the three definition

-three points that are not collinear
-a line and a point not lying on the line
-two lines which intersect in a single point or are parallel
Is this also Exhibit A ?
 
14. from the 3rd definition,

Use the following scenario for questions 14 and 15.


Imagine you have been called as a expert witness in a court case. Your expertise is in the area of planes (not airplanes, just planes in geometry). You have been asked the following questions. Your task is to convince the jury that there is, in fact, a plane. You must prove all three of the definitions of a plane given in Lesson 1. You may need to include some other definitions such as the definition of an angle, a ray, etc.


These are the three definition


-three points that are not collinear
-a line and a point not lying on the line
-two lines which intersect in a single point or are parallel


14. Question from the lawyer: "Dr. Expert, I only see three parallel lines here. Terry said that having these three parallel lines mean you have at least one plane. I enter Exhibit A which shows three definitions of a plane. From what I see, none of these definitions say that three parallel lines define a plane. Explain how the definitions in Exhibit A prove that you have at least one plane given three parallel lines." (This question is worth 3 points.)




15. Question from the lawyer: "Dr. Expert, I only see an angle between 0° and 180° here. Kelly said that having this angle means you have a plane. I enter Exhibit A which shows three definitions of a plane. From what I see, none of these definitions say that an angle defines a plane. Explain how the definitions in Exhibit A prove that an angle defines a plane." (This question is worth 3 points.)

two parallel lines define a plane. so 3 parallel lines are enough to define a plane. just like if 2$ can buy an egg, 3$ can buy it, too.

15. a angle is formed by two lines than meet at a point. from the 3rd definition, it defines a plane.
 
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