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Charlyn walks completely around the boundary of a square whose sides are exactly 5 km long. From any point on her path she can see exactly 1 km horizontally in all directions. What is the area of the region consisting of all points Charlyn can see during her walk?

 Jul 24, 2020
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I believe this is a square with rounded corners resulting in the following (sketch it out)

(7 x 5)    +     (1 x 5)  *2      +    pi (1)^2

 Jul 24, 2020

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