Question

ajuda pfvvvv............​

Answer 1

A = π * r²

1,25 km → 1250 m

A = 3,14 * 1250²

A = 3,14 * 1 562 500

A = 4.906.250 m²

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b)

20,5 dm → 2,05 m

A = 3,14 * 2,05²

A = 3,14 * 4,2025

A = 13,19585 m²