Explicație pas cu pas:
= 3/8
1 = 3L/8
P = 2(L + 1) = 132
L + 1 = 132 : 2 = 66
L + 3L/8 = 66
11L/8 = 66
L = = 66*8/11 = 48
1 = 3*48/8 = 18
A=L*1 = 48 * 18 = 864
0601 22:54
11 = 5L1/6
P1 = 2(L1 +11) = 198
L1 + 11 = 198 : 2 = 99
L1 + 5L1/6 = 99
11L1/6 = 99
L1 = 99*6/11 = 54
11 = 5*54/6 = 45
A1 = L1* 11 = 54 * 45 = 2430
A/A1 = 864/2430 = 0,3(5)
