Luas ABCDEF = Luas layang layang/ x + luas trapesium/y
x= 20 x (8x2)/2 =160cm²
y= (8+(8x2))x(20-8) : 2
y= 24 x 12/2 = 144cm²
160+144 = 304cm² (a)
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Luas ABCDEF = Luas layang layang/ x + luas trapesium/y
x= 20 x (8x2)/2 =160cm²
y= (8+(8x2))x(20-8) : 2
y= 24 x 12/2 = 144cm²
160+144 = 304cm² (a)