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The rectangle below has been divided into unit squares.  Find the total area of the blue shaded region, in square units.

 

 Feb 23, 2024
 #1
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By pythagorean theorem looking at a right triangle with the hypotenuse of the side length of the square,

\({2}^{2}+{4}^{2}={c}^{2}\). c2 is also the area of the square, so our area is 22+42=20.

 Feb 23, 2024

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