MHB Can you find the area of the blue triangle in just 3 minutes?

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similar triangles ... the blue area is 75 - 12
 
skeeter said:
similar triangles ... the blue area is 75 - 12
Thanks!
 

Thread 'Area of Overlapping Squares'

Here is a little puzzle from the book 100 Geometric Games by Pierre Berloquin. The side of a small square is one meter long and the side of a larger square one and a half meters long. One vertex of the large square is at the center of the small square. The side of the large square cuts two sides of the small square into one- third parts and two-thirds parts. What is the area where the squares overlap?
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