Stuck on how to work out the area of the shaded part of the rectangle
I know how to find the area of the rectangle and I believe the square sides are 5cm. I have worked out the area of both and subtracted the squares. This is where I get stuck. I can work out the area of the top triangle but don't know if this is the right thing to do or where to go from there.
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This is a tricky question. I can answer it, but the offered bounty is too low!
How about now?
It is not possible to get the side of square as 5 by subtracting the area, by rotation it is 5 I also believe and can be proved easily! You said you can find top left area! How did you find the intersections on sides! I believe they will be 6,8 but did you prove it. ?