Republic
First, guess which circle has the larger diameter: the one with the same area as the area of the Czech Republic, or the one with the perimeter equal to the length of the border of the Czech Republic? Then check your guess by calculating. The area of the Czech Republic is 78,864 square kilometers. The total length of the state border is 2,310.4 kilometers.
Correct answer:

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algebraarithmeticplanimetricsUnits of physical quantitiesGrade of the word problem
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