Geometria Espacial Flashcards

1
Q

nº de arestas de um poliedro?

A

A = nF/2 (n= nº de lados da face)

A = pV/2 (p= nº de arestas que partem de cada vértice)

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2
Q

Teorema de Euler

A

V - A + F = 2

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3
Q

Soma dos ângulos das faces de um poliedro

A

S = (V - 2) . 360º
(V=nº de vértices)

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4
Q

Nº de diagonais de um poliedro

A

D = Cv,2 - Df - A
(Df= nº de diagonais das faces
A = arestas)

*Cv,2 = V! / (V-2)! . 2!

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5
Q

area total do prisma

A

At = Alateral + 2 . Abase

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6
Q

volume do prisma

A

V = Abase . altura (h)

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7
Q

area lateral do cilindro

A

2 pi R h

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8
Q

area total do cilindro

A

2 pi R h + 2 pi R²

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9
Q

volume cilindro

A

pi R² h

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10
Q

volume pirâmide

A

1/3 . A base . altura (h)

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11
Q

area total pirâmide

A

At = Abase + Alateral

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12
Q

geratriz

A

g² = h² + r²

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13
Q

area da base cone

A

pi r²

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14
Q

area lateral cone

A

pi r g —-> (pirge)
( g = geratriz)

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15
Q

area total cone

A

At = pi r (r + g)

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16
Q

volume cone

A

v = 1/3 pi r²

17
Q

area esfera

A

4 pi r²

18
Q

volume esfera

A

4/3 pi r³

19
Q

area fuso esferico

A

Af = pi r² (alfa) / 90º

20
Q

area cunha esférica

A

Ac = pi r² + (pi r² (alfa)) /90º

21
Q

volume cunha esferica

A

Vc = pi r³ (alfa) / 90º