Ｋate;)
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[this wednesday 交]form two maths .. plz help me ..
form two maths ... i dunno how to do it ..
so .... plz help me ..
i need to hand in this friday ... thz =]
new one :
A surveyor wants to measure the width of a river. He mariks two points A and B on opposite sides of the river and then a point C 20m from point B along the riverbank. If < ABC = 90° and <BCA = 68°12' , how wide is the river ?
[ 本帖最後由 kate`;} 於 2007-8-20 04:46 PM 編輯 ]
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my name is KATE.
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