It is: 2*pi*100 meters
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The circumference is equal to pidiameter, or 3.143km 9.42 or 9 km rounded to the nearest km
the park is 30m x 90m
625m2 comes from multiplying to sides of the square park. This is how the area of the park was originally found. So if you want to surround the same park with wooden fencing you need to find the length of those sides that were multiplied by each other to find the area. Since the park is a square we know that both of those sides will be equal, and we can simply find the square root of 625 (this is the opposite of what was done to find the area - the two numbers were squared). When we square root 625 we get 25. This means that one of the side lengths is 25. In order to surround the ENTIRE park you are going to need 4 of those lengths. From here we simply multiply our single parkside length by 4, and we will get the number of meters required to fence the entire park. 25 x 4 = 100; Therefore you will need 100m of fencing to fence a square park with an area of 625m2
1 kilometer is the longest measurement among the three options. This is because 1 kilometer is equal to 1000 meters, which is longer than 10 meters and 100 centimeters. In order from longest to shortest: 1km > 10m > 100cm.
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