Respostas

2014-06-10T14:20:32-03:00
2(ab) + 2 (ac) + 2 (cb)
A = 3
B = 3
C = 6

2(3.3) + 2(3.6) + 2 (6.3)
2(9) + 2(18) + 2(18)
18 + 36 + 36 = 90 cm²
1 4 1