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)![]() ![]() You can put this solution on YOUR website! \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. \n" ); document.write( " |