Geometria Flashcards

1
Q

Qual formula da área de uma esfera

A

4(pi)R^2

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2
Q

formula do volume de tronco

A

H/3 * (A+raiz(AB)+B)

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3
Q

Qual a lei de euler dos poligonos

A

V + F = A + 2

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4
Q

Formula da area lateral do cone

A

Pi * r * g

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5
Q

Area do triangulo equilatero

A

L² * √3 / 4

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6
Q

Area do triangulo pelo seno

A

At = a * b * sen(c) / 2

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7
Q

Formula do Y do vertice

A

Yv = -Δ/4a

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8
Q

Qual proporção de queda de galileu

A

d 3d 5d 7d 9d …
Queda(altura)(y)
(É entre a altura anterior e a nova)

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9
Q

Oq é angulo obtuso, agudo, reto e raso?

A

agudo < 90°
obtuso > 90°
Reto = 90°
Raso = 180°

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10
Q

Volume da esfera

A

Quatro terços de pi R ao cubo

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11
Q

Formula da area do poligono regular

A

Semiperimetro * apótema

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12
Q

Formula das diagonais de um poligono

A

D = n(n-3)/2

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13
Q

formula da pos do baricentro na analitica

A

media aritmética da posição dos 3 vértices:
x = (x1 + x2 + x3)/3
y = (y1 + y2 + y3)/3

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14
Q

Raio da circunferencia inscrita no triangulo

A

Area = (a + b + c) * r / 2

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15
Q

Raio da circunferencia circunscrita no triangulo

A

A = a * b * c / 4R

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16
Q

Qual formula canonica da parabola

A

Y = a(X - Xv)² + Yv

17
Q

Qual formula da parabola com as raizes

A

Y = a(X-X1)(X-X2)

18
Q

Formula da relação fundamental

A

Sen(x)² + Cos(x)² = 1

19
Q

Formula da area do losango

A

D * d / 2

20
Q

Como calcular o coeficiente angular

A

Delta Y / Delta X
esquerda - direita/cima - baixo

21
Q

Fórmula do seno da soma de arcos

A

SenA * CosB + SenB * CosA

22
Q

Fórmula do cosseno da soma de arcos

A

CosA * CosB - SenA * SenB

23
Q

Fórmula da tangente da soma de arcos

A

TanA + TanB / 1 - TanA * TanB

24
Q

Fórmula do X do vértice

A

Xv = -b/2a

25
Q

fórmula da distancia entre um ponto e uma reta na analítica

A

d= |aX0 + bY0 + c| / √(a2 + b2)