Keliling persegi panjang
K = 2 (p + l)
86 = 2 (p + 25)
86 = 2p + 25
p = 86/2 - 25
p = 43 - 25
p = 18 cm
Luas persegi panjang
L = p x l
= 18 x 25
= 450 Cm²
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Keliling persegi panjang
K = 2 (p + l)
86 = 2 (p + 25)
86 = 2p + 25
p = 86/2 - 25
p = 43 - 25
p = 18 cm
Luas persegi panjang
L = p x l
= 18 x 25
= 450 Cm²