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## Math Squid Game diagram.

### Solution

To calculate the area of the blue part of the squid Game diagram, let’s divide the problem into three parts like it is shown in the next figures .
blue area = (triangle area – green area) + small rectangle area + (big rectangle area – semi circle area)
\begin{aligned} &=\left(\frac{10 \cdot 5}{2}-\frac{\pi \cdot 2^{2}}{4}\right)+2 \cdot 1+\left(5 \cdot 10-\frac{\pi \cdot 2^{2}}{2}\right) \\\\ &=25-\pi+2+50-2\pi \\\\ &=77-3 \pi \end{aligned}
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