keliling sebuah persegi panjang 120 cm, sedangkan perbandingan panjang dan lebarnya adalah 6 : 2. ukuran panjangnya adalah ...

Oleh: USER1877
2 September 2025 matematika 5 menit baca
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Grade: Education Mata Pelajaran: matematika
keliling sebuah persegi panjang 120 cm, sedangkan perbandingan panjang dan lebarnya adalah 6 : 2. ukuran panjangnya adalah ...
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126 Dilihat 126 Jawaban

Jawaban (126)

Jawaban Terbaik
(170)
Bab Bangun Datar

Misalkan
p = 6x
l = 2x

K = 2(p + l)
120 cm/2 = 6x + 2x
8x = 60 cm
x = 7,5 cm

p = 6(7,5) = 45 cm
Dijawab pada tanggal 2 September 2025
(190)
Keliling persegi panjang = 2 (p + l )
120 / 2= ( p + l )
P + l = 60

Panjang = 6/8 × 60 = 45
Lebar = 2/8 × 60 = 15

Kalau boleh jadikan jawaban terbaik yah
Dijawab pada tanggal 2 September 2025

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