Winkel und Kreis Flashcards

1
Q

Welche System(e) geben Winkel an?

A

Grad und Radiant

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2
Q

Was gibt der Winkel an?

A

Das Verhältnis zwischen zwei Geraden

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3
Q

Kreisumfang

A

2π r

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4
Q

Umrechnung von Radiant in Grad

A

G = Rad * 180/ π

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5
Q

Umrechnung von Grad in Radiant

A

Rad = G * π/180

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6
Q

π/2…
π…
2π…

A

90°
180°
360°

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7
Q

Durchmesser eines Kreises

A

d = 2 * r

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8
Q

Umfang eines Kreises

A

U = 2 * r * π

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9
Q

Fläche eines Kreises

A

A = r^2 * π

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10
Q

Verdoppelt sich der Radius, so …

A

… verdoppelt sich der Durchmesser

… vervierfacht sich die Fäche

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11
Q

Was ist der Hexaeder

A

Sechsflächner

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12
Q

Beispiele für Hexaeder?

A
  • Würfel
  • Quader
  • 5-Seitige Pyramide
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13
Q

Formel zur Berechnung der Raumdiagonale e eines Würfels

A

e = sqrt(3) * a

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14
Q

Formel zur Berechnung der Oberfläche eines Würfels

A

A = 6 * a^2

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15
Q

Formel zur Berechnung der Oberfläche eines Quader

A

A = 2ab + 2ac + 2bc

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16
Q

Formel zur Berechnung der Raumdiagonale e eines Quader

A

e = sqrt ( a^2 + b^2 + c^2)