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Find the Area of the Square 求 荫 影 面 积

Dr.Ying's picture
Submitted by Dr.Ying on Fri, 05/26/2017 - 10:44

Find the Area 求 荫 影 部 分 面 积
Points E, F, G and H are midpoints of sides of square ABCD as shown. If AB is 20 units long, then what is the area of the shaded region?

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上 期 答 案： Area = 2 square units

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