# Dog

Dog is tied to a chain, which is mounted in a corner of the yard. Yard has the shape of a square with a side length of 20 meters. The same long is also dogchain. Are there places in the yard where dog can't reach?

Result

#### Solution:

$u^2 = 20^2+20^2 \ \\ u = \sqrt 2 \cdot 20 = 28.284 \ m \ \\ u > a$ Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!

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Pythagorean theorem is the base for the right triangle calculator.

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