Question

Perbandingan panjang dan lebar bendera adalah 3 :2 . keliling bendera 120cm . lebar bendera adalah . . .

Answer 1

Keliling = 2(p+l)
120 = 2(3y+2y)
120 = 2(5y)
120 = 10y
y = 120/10
y = 12

lebar = 2y = 2 x 12 = 24 cm
panjang = 3y = 3 x 12 = 36 cm

Answer 2

K = 2(p+l)
120 = 2(3y+2y)
120 = 2(5y)
120 = 10y
y = 120/10
y = 12

L= 2y = 2 x 12 = 24 cm
P = 3y = 3 x 12 = 36 cm