A07 - Círculo e Circunferência Flashcards

1
Q

Fórmula do setor circular

A

A = L.r/2 = π.β.r2/360° = β.r2/2

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2
Q

fórmula do segmento circular

A

A = L.r – r2.sen β/2

ou β.r2 – r2 sen β/2

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3
Q

fórmula da coroa circular

A

A = π(R2 – r2)

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4
Q

área de um triângulo tendo 2 lados e um ângulo

A

S = a. b. sen β/2

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