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Kalo K Persegi :
L = 64
r = 8
K = 4r = 32cm
Kalo K P.Panjang :
K = 2(p+l)
= 2(16+4)
=2 x 20 = 40cm
[cmiiw]
= 16 x 4
= 64 cm²
Lpersgi = 64
s² = 64
s = √64
s = 8 cm
Kpp = 2(p + l)
= 2(16 + 4)
= 2 x 20
= 40 cm
Kpersegi = 4s
= 4(8)
= 32 cm