Respuesta :

1.5 x 1.5 =2.25 
2.5 x 2.5 =6.25 
3.5 x 3.5 =12.25 
4.5 x 4.5 =20.25 
5.5 x 5.5 =30.25 
6.5 x 6.5 =42.25 
7.5 x 7.5 =56.25 
8.5 x 8.5 =72.25 
9.5 x 9.5 =90.25 
10.5 x 10.5 =110.25 
11.5 x 11.5 =132.25 
12.5 x 12.5 =156.25
13.5 x 13.5 =184.25
14.5 x 14.5 =214.25
15.5 x 15.5 =246.25
16.5 x 16.5 =280.25
17.5 x 17.5 =316.25
18.5 x 18.5 =354.25
19.5 x 19.5 =394.25
20.5 x 20.5 =436.25
lo k necesitabas espero k te sirva de gran ayuda =D