A=L*C
L=C-28
A=(C-28)C
1.100=C²-28C
C²-28C-1.100=0
C'=50
C"-22...não serve.
L=50-28
L=22 m
Resposta22x50 m
Ola re
x*(x - 28) = 1100
x² - 28x - 1100 = 0
d² = 28² + 4400 = 5184
d = 72
x = (28 + 72)/2 = 50
y = 50 - 28 = 22
pronto
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A=L*C
L=C-28
A=(C-28)C
1.100=C²-28C
C²-28C-1.100=0
C'=50
C"-22...não serve.
L=50-28
L=22 m
Resposta22x50 m
Ola re
x*(x - 28) = 1100
x² - 28x - 1100 = 0
d² = 28² + 4400 = 5184
d = 72
x = (28 + 72)/2 = 50
y = 50 - 28 = 22
pronto