Jawabanmu

2014-05-29T08:21:00+07:00
W = 180-85 = 95
x = 180-85-35 =60
y = 180-60 = 120
z =180-35 = 145

2. 8+12+20+18 = 58 cm ( kel )
luas = (12x 8)+(8x18) = 96+144 =240 cm2