【Haichuan Teahouse】Brain-teasing Series: Calculate area without knowing side lengths
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As can be seen from the figure, the side length of the small square is 8. What is the area of the shaded region in the figure?
Area is 32. I confirmed it by using CAD for drawing, and I also calculated it with formulas; in both cases the result was 32
Seriously, give it a like; actually, it’s just a drawing method
How to draw a large square in CAD so that its area is 32? I still can’t figure out why this is the case, nor how to prove it It should be set up so that the unknown variables can cancel each other out.
Look at the fourth floor – it’s a simple principle: the area of a triangle is equal to half the product of its base and height
This is precisely the result of an inadequate foundation in epistemology
The second square is a decoy
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In fact, as long as two squares with a side length of 8 are combined, it becomes obvious that the result is 4*8/2*2=32