AMC 8 2001 Problem 9
AMC8 2001 年第 9 题
面积与周长（综合）★★☆☆☆
To promote her school's annual Kite Olympics, Genevieve makes a small kite and a large kite for a bulletin board display. The kites look like the one in the diagram. For her small kite Genevieve draws the kite on a one-inch grid. For the large kite she triples both the height and width of the entire grid. The large kite is covered with gold foil. The foil is cut from a rectangular piece that just covers the entire grid. How many square inches of waste material are cut off from the four corners?
大风筝由一层金箔覆盖。箔材是从一张矩形金箔纸上切得，这张矩形金箔纸刚好能够覆盖整个网格。则从四个角上切下多少平方英寸的废料？ Problem 10 A collector offers to buy state quarters for 2000% of their face value. At that rate how much will Bryden get for his four state quarters? 一位收藏家提出以面值的 2000％购买州政府发行的 25 美分硬币。按这个价格，Bryden 的 4 枚这样的 25 美分硬币能卖到多少钱？
- A.63
- B.72
- C.180
- D.189
- E.264
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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