Geometria plana Flashcards

1
Q

Diagonal de um polígono

A

d = lados (lados -3)/2

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2
Q

Soma interna dos ângulos

A

Si = 180 (n - 2)

(n é número de lados)

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3
Q

bissetriz

A

semirreta que divide o ângulo no meio

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4
Q

πrad

A

180 graus

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5
Q

altura do triângulo equilátero

A

h = L√3 / 2

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6
Q

área do triângulo equilátero

A

A = Lˆ2 √3 / 4

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7
Q

relação raio com um triângulo inscrito

A

R = 2/3 . h

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8
Q

relação raio com um triângulo circuncrito

A

R = 1/3 h

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9
Q

área do trapézio

A

A = (B+b) . h / 2

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10
Q

losango

A

A = Dd/2

D -> diagonal maior
d -> diagonal menor

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11
Q

diagonal do quadrado

A

L √ 2

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