Park trail length

The circular park has an area of 31400 m2. A trail runs across the center of the park. How long is it?

Final Answer:

x =  200 m

Step-by-step explanation:

S=31400 m2  S = π r2  r=S/π=31400/3.141699.9746 m  D=2 r=2 99.9746199.9493 m  x=D=199.9493=200 m



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