彻底栽在小学数学题上了!一道三五0年级的思维题,把研究生毕业的表姐和当老师的舅舅都给难住了。两人对着题目苦思冥想,草稿纸写了满满一页,越算越迷糊。旁边上小学的表弟看得一脸无语,忍不住吐槽:原来高学历也会被小学题难住,还不如我呢!
跪求数学大佬指点迷津,实在太丢人了!
如图所示,已知四边形的周长=30,求阴影部分面积
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