pada gambar di samping ini,nilai x+y =

12/12+x = 6/8
6(12+x) = 12.8
72+6x = 96
6x = 96-72
6x = 24
x = 24/6 = 4 cm

y/8 = 6/8
8.y = 6.8
8y = 48
y = 48/8 = 6 cm

x+y = 4+6 +10 cm