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2 ( P + L) = 26
P + L = 13
4 + 2L + L = 13
3L = 9
a. Model Matematika :
4 + 2L = P
P + L = 13
b. 3 L = 9
Lebar = 3m
P + L = 13
P + 3 = 13
P(panjang ) = 10m
c. P x L = Luas
10m x 3m = 130m2
k=26
2(p+L)=26
2(4+2L+L)=26
2(4+3L)=26
8+6L=26
6L=18
L=3
a. model matematika
p=4+2L
p+L=13
b. panjang = 4+2L =4+2(3) =4+6=10m
lebar=3m
c. luas= p × L = 10 × 3= 30m²