AMC 8 1999 Problem 5
AMC8 1999 年第 5 题
面积与周长（综合）★★☆☆☆
A rectangular garden 60 feet long and 20 feet wide is enclosed by a fence. To make the garden larger, while using the same fence, its shape is changed to a square. By how many square feet does this enlarge the garden?
一个长 60 英尺、宽 20 英尺的矩形花园用围栏围起来。为了使花园更大，同时使用同样的围栏，将其形状改为正方形。这样花园面积扩大了多少平方英尺？
- A.100
- B.200
- C.300
- D.400
- E.500
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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