Question

Pake cara nya yh kak

Answer 1

Perbandingan segitiga ABC dengan segitiga AED
AB : AE = BC : ED
12/4 = AB/6
AB = 12/4 x 6 = 18 cm (D)

Answer 2

6/6+X = 4/12
72 = 4(6+X)
72 = 24 + 4X
72-24 = 4X
48 = 4X
48/4 =X
12 =X