The rods are:
Rational : 1,2,3 :
Irrational :sqrt (2),sqrt (3),sqrt (5),
5 of 20 possible triplets are Pythagorian.:
Rem1: I f you randomly select three rods there is a probability of 25% you will be able to create a right angled triangle..
Rem2: There might be other combinations.
Edited on February 10, 2011, 1:03 pm