lebar 25cm jika keliling persegi panjang tersebut 120cm ukuran panjangnya adalah... cm

K = 2 x ( p + l )
120 = 2 x ( p + 25 )
120/2 = p + 25
60 = p = 25
60 - 25 = p
35 cm = Panjang


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Keliling = 2 x ( p + l )
120 = 2 x ( p + 25 )
p = ( 120 ÷ 2 ) - 25
p = 60 - 25
p = 35 cm[tex] [/tex]

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