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標題:
數學急.........................................................
發問:
1) You have a square piece of cardboard that has a perimeter of 12 centimeters. What is the area of the cardboard? 2) I am a number. I am the sum of 42 and 62. What number am I?
最佳解答:
1. The area of of the cardboard = (12/4 cm)^2 = (3cm)^2 = 9cm^2 2. I am = 42+62 =104 2007-01-08 18:24:06 補充： 第一題周界係12cm既正方形邊長就係12/4cm=3cm而佢既面積就係(3cm)^2=9cm^2第二題你係42同62既和(sum)即係42 62咪104
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