Question 217905
YOU DIDN'T STATE THAT THIS TRIANGLE IS A RIGHT TRIANGLE OR NOT. 
IT DOES MAKE A DIFFERENCE.
PERIMETER (M)=A+B+C FOR ALL TRIANGLES.
LET M=12
A RIGHT TRIANGLE COULD BE:
3+4+5=12
BECAUSE 3^3+4^2=5^2
9+16=25 
25=25 THUS THE SMALLER SIDE WOULD BE 3.
HOWEVER A NON-RIGHT TRIANGLE WOULD HAVE A DIFFERENT SOLUTION GIVEN AN (M) VALUE.
TRY (M)=47
THE SHORTEST SIDE COULD BE 1.
A+B+C=47
1+B+C=47
1+23+23=47 (THIS TECHNIQUE WORKS AS LONG AS THE DIFFERENCE BETWEEN THE B & C SIDES IS < THE A SIDE.)
47=47
THIS WORKS FOR ANY PERIMETER = AN ODD NUMBER.
LETS TRY AN EVEN NUMBER:
(M)=74
A+B+C=74
2+B+C=74
2+36+34=74 (AGAIN THE DIFFERENCE BETWEEN B & C IS < A SIDE.)
74=74