Polígonos Flashcards

(11 cards)

1
Q

Polígono convexo

A

Ângulos internos menires que 180°

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2
Q

Polígono não convexo

A

Pelo menos um ângulo interno maior que 180°

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3
Q

Elementos de um polígono

A
  • Vértices
  • Lados
  • Diagonais
  • Ângulo interno
  • Ângulo externo
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4
Q

Ângulo interno + Ângulo externo =

A

180°

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5
Q

Polígonos regulares

A
  • Lados iguais
  • Ângulos internos iguais
  • Ângulos externos iguais
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6
Q

Soma dos ângulos internos

A

Si = (n-2) . 180°

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7
Q

Ângulo interno de polígonos regulares

A

Ai = Si / n

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8
Q

Soma dos ângulos externos

A

Em todo polígono convexo:

Se = 360°

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9
Q

Ângulo externo em polígonos regulares

A

Ae = 360° / n

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10
Q

Número de diagonais

A

d = n . (n-3) / 2

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11
Q

Número de diagonais que passam pelo centro

A

n par: n / 2
n ímpar: nenhuma

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