Answers

2015-08-12T13:34:14+05:30
3,4,5 are known pythagorean triplets
Just double them...you get another set of pythagorean triplets

6, 8, 10
0
2015-08-13T19:54:47+05:30
M=3
2m=6
m square+1=10
6,8,10
1 2 1