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Mathematics homework~anxious!

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Mathematics homework~anxious! http://upload.u-discuss.net/./file/20071226103405.jpg

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1. 4C=12 C=3 A=C+4 =3+4 =7 D=0.5(A-C) =0.5(7-3) =2 E=2C =6 F=2(C+D) =2(3+2) =10 G=C^2 =9 H= -(-D)^2X(E-F)/4 = -(-2)^2X(6-10)/4 = -4 x -1 =4 I =2C-1 =5 B=[Ax(-2)-GX(-6)]/5 =[-14 +54]/5 =8 A=7, B=8, C=3 D=2, E=6 ,F=10 G=9, H=4 ,I=5 2 要畫圖...你自己加油 le條唔難係煩 用圓規 就可以畫到3角形 with 佢要既長度~~你應該識架la 3.ACIG is a parallelogram and AI is DIagonal so area of AIG = area of IAC (with same base,AC and IG)(SAME HEIGHT)
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