a
To calculate: The maximum number of lines determined in the paper are to be found
a

Answer to Problem 42RP
The number of lines formed is 21
Explanation of Solution
Given information: The following information is given in the question
- Any four of them are non colinear
- No three of them are colinear − we will assume for maximum lines to be determined
Formula used: Number of lines formed by n points with no three of them colinear
lines=n(n+1)2
Calculation: We will work on the above equation with n=6 to find our answer
Substituting n=6 , we get
lines=6(7)2=21
Thus, the number of lines formed is 21
b
To calculate: The minimum number of lines determined in the paper are to be found
b

Answer to Problem 42RP
The number of lines formed is 2
Explanation of Solution
Given information: The following information is given in the question
- Any four of them are non colinear
- Two sets of three are colinear − we will assume for minimum lines to be determined
Formula used: Logical reasoning is used
Calculation: Using the above statements, we can see that for two sets of colinear points, we will have only two non colinear lines
Thus, the number of lines formed is 2
Chapter 1 Solutions
Geometry For Enjoyment And Challenge
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