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66=2(p+l)
33=p+l
p/l=7/4
p=7/11.33=21
l=4/11.33=12
luasnya 252 cm persegi
p= 7/11×66 = 42÷2 = 21
l= 4/11×66= 24÷2= 12
*dibagi 2 karena rumus K=2÷(p+l)*
Luas= p×l
=21×12= 252 cm²