perbandingan panjang danlebar persegi panjang 4 banding 3 jika luas 432cm2 maka kelilingnya

Mencari X
L = p × l
432 cm^2 = 4x × 3x
432 cm^2 = 12 x^2
432 : 12 = x
36 = x

● Panjang
= 4x
= 4 × 36
= 144 cm

● Lebar
= 3x
= 3 × 36
= 108 cm

Keliling
= 2 ( p+l )
= 2 ( 144 + 108 )
= 2 × 252
= 504 cm