Jawapan

2016-08-28T22:40:37+08:00
Utk cari x awak kene cari luas trapezium
luas trapezium: 1/2×(jum sisi bertentangan)×tinggi
(1/2×(4+8)×X)×2+(12×4)+(9×12)+(8×12)+(12×X)=396