SOLUTION: There are 4 points A,B,C,and D on line l and another four points W,X,Y, and Z on a different line parallel to line l. How many distinct lines can be drawn that includes exactly two

Question 1088489: There are 4 points A,B,C,and D on line l and another four points W,X,Y, and Z on a different line parallel to line l. How many distinct lines can be drawn that includes exactly two of these 8 points?

Answer by ikleyn(52786) (Show Source): You can put this solution on YOUR website!
.

1 line containing four points A, B, C and D.

1 line containing four points W, X, Y and Z.

4 lines connecting point A with points W, X, Y and Z;

4 lines connecting point B with points W, X, Y and Z;

4 lines connecting point C with points W, X, Y and Z;

4 lines connecting point D with points W, X, Y and Z.


In all, 1 + 1 + 4*4 = 18 lines.


Answer. 18 lines.

Solved.

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