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Square in Square (Posted on 2012-11-17) Difficulty: 3 of 5
A small square is placed inside a big square. The vertices of the small square are joined to vertices of the large square so as to divide the region between the squares into four quadrilaterals, with areas, in order, a, b, c, d.
Prove that a+c=b+d.

No Solution Yet Submitted by Danish Ahmed Khan    
Rating: 4.0000 (1 votes)

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  Subject Author Date
Vector solutionBractals2012-11-18 19:02:57
SolutionAnother approach (spoiler)Harry2012-11-18 12:58:43
Some Thoughtspossible solutionbroll2012-11-18 03:52:58
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