Teniu ja posats els rengles principals i el rengle que aguanta els vents del folre 
en  una pinya del 3 de 9 amb folre i en una del 4 de 9 amb folre.

Hi ha unes persones més primes i unes més refetes esperant per posar-s'hi.  Ànim!

En resum, una reflexió geomètrica sobre els 90º i els 120º

A = (1, 1)
B = (1.5, 1)
Polígon1, a, b, c, C = Polygon(A, B, 3)
D = (4.5, 1)
E = (4.92, 1)
Polígon2, d, e, f, g, F, G = Polygon(D, E, 4)
H = (1.26, 1.24)
I = (1.34, 1.1)
J = (1.16, 1.1)
K = (4.64, 1.28)
L = (4.84, 1.28)
M = (4.66, 1.12)
N = (4.84, 1.12)
O = (1.06, 1.2)
P = (1.16, 1.32)
Q = (1.42, 1.32)
R = (1.34, 0.92)
S = (4.68, 0.96)
T = (4.8, 0.94)
U = (5, 1.28)
V = (4.46, 1.3)
W = (4.74, 1.46)
Z = (1.16, 0.9)
A_1 = (1.52, 1.16)
B_1 = (4.6, 1.48)
C_1 = (4.5, 1.16)
F_1 = (5.02, 1.14)
D_1 = (1.22, 1.62)
E_1 = (0.92, 0.94)
G_1 = (1.5862208865514653, 0.8905184072126227)
H_1 = (4.36, 1.5)
I_1 = (5, 1.5)
J_1 = (4.42, 0.9)
K_1 = (5.02, 0.88)
L_1 = (0.94, 1.24)
M_1 = (1.06, 1.34)
N_1 = (1.2225845229151018, 0.8574605559729533)
O_1 = (1.48, 1.4)
P_1 = (1.3052291510142753, 0.8409316303531186)
Q_1 = (1.6, 1.26)
R_1 = (4.62, 1.58)
S_1 = (4.4, 1.28)
T_1 = (4.44, 1.16)
U_1 = (4.82, 0.88)
V_1 = (5.12, 1.14)
W_1 = (4.62, 0.86)
Z_1 = (5.12, 1.3)
A_2 = (4.8, 1.56)
B_2 = (1.2225845229151018, 1.667377911344853)
C_2 = (1.2225845229151018, 2.1301878287002243)
D_2 = (4.049030803906836, 1.716964688204357)
E_2 = (4.230848985725019, 1.5847332832456795)
F_2 = (4.164733283245679, 0.6425845229151024)
G_2 = (4.2969646882043575, 0.8078737791134493)
H_2 = (1.2225845229151018, 1.8822539444027038)
I_2 = (0.7928324567993993, 0.8078737791134493)
J_2 = (0.6440721262208869, 0.6756423741547717)
K_2 = (0.42919609316303575, 0.5103531179564249)
L_2 = (1.718452291510143, 0.7913448534936145)
M_2 = (1.9002704733283247, 0.6756423741547717)
N_2 = (2.065559729526672, 0.5103531179564249)
O_2 = (4, 0.5)
P_2 = (5.106882043576258, 1.6177911344853488)
Q_2 = (5.2887002253944395, 1.7334936138241916)
R_2 = (5.420931630353118, 1.8161382419233651)
S_2 = (5.123410969196093, 0.8078737791134493)
T_2 = (5.239113448534936, 0.7087002253944411)
U_2 = (5.4044027047332825, 0.5764688204357636)
V_2 = (3.88374154770849, 1.7996093163035305)
W_2 = (0.9085349361382422, 1.3367993989481592)
Z_2 = (0.7432456799398952, 1.4194440270473327)
A_3 = (0.5944853493613829, 1.5351465063861756)
B_3 = (1.8010969196093165, 1.502088655146506)
C_3 = (1.6027498121713, 1.3698572501878286)
D_3 = (1.9663861758076635, 1.6177911344853488)
E_3 = (1.255642374154771, 0.7913448534936145)
F_3 = (1.255642374154771, 0.36159278737791267)
G_3 = (5.56969196093163, 1.1715101427498122)
H_3 = (1.255642374154771, 0.5764688204357636)
I_3 = (4.69365890308039, 1.667377911344853)
J_3 = (4.677129977460556, 1.8822539444027038)
K_3 = (4.677129977460556, 2.0640721262208857)
L_3 = (5.354815927873779, 1.1880390683696471)
M_3 = (5.139939894815927, 1.2045679939894818)
N_3 = (4.726716754320059, 0.8078737791134493)
O_3 = (4.7432456799398945, 0.5929977460555983)
P_3 = (4.776303531179564, 0.3781217129977474)
Q_3 = (4.313493613824192, 1.1549812171299776)
R_3 = (4.115146506386176, 1.138452291510143)
S_3 = (3.916799398948159, 1.1219233658903083)
T_3 = (0.26390683696468864, 3.8657250187828662)
U_3 = (2.379609316303531, 3.8491960931630316)
V_3 = (0.6110142749812174, 4.014485349361378)
W_3 = (0.8920060105184076, 4.378121712997742)
Z_3 = (1.4539894815927876, 4.278948159278733)
A_4 = (1.2060555972952667, 3.8657250187828653)
B_4 = (1.9167993989481595, 4.411179564237411)
C_4 = (2.4457250187828703, 4.312006010518403)
D_4 = (2.8258903080390683, 4.3285349361382375)
E_4 = (3.2556423741547706, 4.312006010518403)
F_4 = (3.7845679939894814, 4.378121712997742)
G_4 = (4.247377911344853, 4.361592787377907)
H_4 = (4.759774605559729, 4.2293613824192295)
I_4 = (5.305229151014275, 4.378121712997742)
J_4 = (6.148204357625844, 3.1549812171299747)
K_4 = (4.743245679939894, 3.8161382419233623)
L_4 = (3.4539894815927865, 3.8491960931630316)
M_4 = (3.8176258452291507, 3.3698572501878257)
N_4 = (4.346551465063861, 3.353328324567991)
O_4 = (4.875477084898572, 3.353328324567991)
P_4 = (5.2887002253944395, 3.3698572501878257)
Q_4 = (5.701923365890307, 3.4359729526671643)
R_4 = (6, 3.5)
S_4 = (6.462253944402704, 3.568204357625842)
T_4 = (6.925063861758076, 3.6343200601051806)
U_4 = (7.5, 3.5)
V_4 = (8, 3.5)
W_4 = (8.082088655146505, 3.7996093163035276)
Z_4 = (8.511840721262208, 3.6508489857250153)
A_5 = (8.115146506386175, 3.2376258452291484)
B_5 = (7.553163035311795, 3.2045679939894787)
C_5 = (7.040766341096919, 3.1715101427498094)
D_5 = (6.478782870022539, 3.1549812171299747)
E_5 = (6.528369646882043, 3.8987828700225355)
F_5 = (7, 4)