tolong jawab ya jangan asala asalan loh

Kelas 8 Matematika
Bab Kesebangunan

1] DG/DB = FG/AB
8/(8 + x) = 4/7
8 + x = 7 . 8/4
x = 14 - 8
x = 6 cm

2] EG/CD = BG/BD
y/14 = 6/(6 + 8)
y = 6 . 14/14
y = 6 cm

x + y
= 6 cm + 6 cm
= 12 cm