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:

D1 =  735.4232 km
D2 =  316.8797 km

Step-by-step explanation:

D1  > D2 o=2310.4 D1=o/π=2310.4/3.1416=735.4232 km
S2=78864 r2=S2/π=78864/3.1416158.4399 D2=2 r2=2 158.4399=316.8797 km



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