Question 1182227
sides 17,21,25.<pre>  
17<sup>2</sup> + 21<sup>2</sup> = 25<sup>2</sup>
289 + 441 = 625
      730 = 625
       Nope!
</pre>sides 8,9,13<pre>
8<sup>2</sup> + 9<sup>2</sup> = 13<sup>2</sup>
64 + 81 = 169
    145 = 169
       Nope!
</pre>sides 24,26,10<pre>
Put them in order smallest to largest
sides 10,24,26
10<sup>2</sup> + 24<sup>2</sup> = 26<sup>2</sup>
100 + 576 = 676
      676 = 676
       Yep!
</pre>sides 1,2,3<pre>
1<sup>2</sup> + 2<sup>2</sup> = 3<sup>2</sup>
1 + 4 = 9
    5 = 9
     Nope!

Edwin</pre>