círculos e circunferências Flashcards by Julia Figueiredo | Brainscape

Q

área do círculo

A

pi.r^2

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Q

perímetro do círculo

A

2.pi.r

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Q

área do setor circular (pedaço de pizza)

A

pi.r^2.ângulo/360 ou l.r/2

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Q

segmento circular (corta uma parte do setor)

A

A=a(setor)-(área do triângulo cortado)

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Q

coroa (dois círculos, parte do círculo maior)

A

A=a(círculo maior - círculo menor) / pi(R^2.r^2)

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