document.write( "Question 1135997: what is the probability that three lines drawn at random can form a triangle \n" ); document.write( "
Algebra.Com's Answer #753747 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "(1) We are talking LINES, of infinite length -- not LINE SEGMENTS of finite length.

\n" ); document.write( "(2) Three lines will all intersect each other, forming a triangle, UNLESS at least two of the lines are parallel.

\n" ); document.write( "(3) The slope of a line can be any real number (or undefined); if the three lines are drawn at random, the probability that any two of them have EXACTLY the same slope is 0.

\n" ); document.write( "Therefore, there is a 100% probability that three lines drawn at random will form a triangle.
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