Can someone please answer. There is only one question. There's a picture too. Thank you!
1 answer:
I supposed π ≈ 3.14 and we have A = 490.87 km²:
Area(A) is: A = π × r² or 3.14 × r² = 490.87 →
r² = 490.87/3.14 → r² = 156,32 → r = √156,32 → r = 12.5
But diameter (d) is: d = 2 × r → d = 2 × 12.5 →d = 50 km
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