$1^2+c^2=2^2$  

$1+c^2=4\mid -1$   

$c^2=3$  

$c=\sqrt{3}dm$    

$1^2+2^2=c^2$  

$1+4=c^2$  

$c^2=5$  

$c=\sqrt{5}dm$  

$1^2+c^2=3^2$  

$1+c^2=9\mid -1$  

$c^2=8$  

$c=\sqrt{8}=\sqrt{4}\cdot \sqrt{2}=2\sqrt{2}m$  

$1^2+3^2=c^2$  

$1+9=c^2$  

$c^2=10$  

$c=\sqrt{10}m$  

$1^2+c^2={\sqrt{2}}^2$  

$1+c^2=2\mid -1$  

$c^2=1$  

$c=1cm$  

$1^2+{\sqrt{2}}^2=c^2$  

$1+2=c^2$  

$c^2=3$  

$c=\sqrt{3}cm$  

$1^2+c^2={\sqrt{3}}^2$  

$1+c^2=3\mid -1$  

$c^2=2$  

$c=\sqrt{2}m$  

$1^2+{\sqrt{3}}^2=c^2$  

$1+3=c^2$  

$c^2=4$  

$c=2m$  

$2^2+c^2={\sqrt{5}}^2$  

$4+c^2=5\mid -4$  

$c^2=1$  

$c=1m$  

$2^2+{\sqrt{5}}^2=c^2$  

$4+5=c^2$  

$c^2=9$  

$c=3m$  

$1^2+c^2={\sqrt{10}}^2$  

$1+c^2=10\mid -1$  

$c^2=9$  

$c=3m$  

$1^2+{\sqrt{10}}^2=c^2$  

$1+10=c^2$  

$c^2=11$  

$c=\sqrt{11}m$