可隨意移動紅點改變a、b、c的數值。留意藍色圖案的改變。[br]You may drag the red dots to change the values of a, b and c. Note how the blue pattern below may change.[list=1][*]根據相同規律，當a＝b＝c＝20，圖中應該總共有多少個藍色小圓。Based on the same rule, when a=b=c=20, how many small blue circles should be there?[/*][br][*]要得到以下圖案，a，b，c的數值應該是什麼？In order to have the pattern in the given picture, what should be the values of a, b and c?[/*][/list]

答案 answer:[br][br]1. 8000[br]2. a=11, b=7, c=6

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