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ukuran panjang sebuah persegi panjang 13 cm. jika lebarnya 3 cm kurang dari panjang.

Rani Maharani

ukuran panjang sebuah persegi panjang 13 cm. jika lebarnya 3 cm kurang dari panjang. persegi panjang, keliling persegi panjang tersebut...cm

Diketahui:

Panjang persegi panjang = 13 cm

Lebar persegi panjang = panjang - 3 cm

Ditanyakan:

Keliling persegi panjang

Rumus:

Keliling persegi panjang = 2 × (panjang + lebar)

Substitusikan nilai yang diketahui:

Panjang = 13 cm

Lebar = panjang - 3 cm

Keliling persegi panjang = 2 × (13 cm + (13 cm - 3 cm))

Simplifikasi:

Keliling

= 2 × (13 cm + 10 cm)

= 2 × 23 cm

= 46 cm

Jadi, keliling persegi panjang tersebut adalah 46 cm.

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