Formulas Flashcards

1
Q

Distancia entre dos puntos

A

e=|AB|=|BA|

A(a, b). e=+raíz (a-c)2+(b-d)2
B(c, d)

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2
Q

Fórmula de heron

A

Para calcular área triángulos sabiendo lados.

p=a+b+c/2

S=raíz p•(p-a)•(p-b)•(p-c)

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3
Q

Ecuación circunferencia

A

P(x, y). |PC|=d(P, C)=r -> distancia
C(a, b). ptos P a C es r.
CP= (x-a, y-b) -> |CP|=raíz(x-a)2+(y-b)2

r2= (x-a)2+(y-b)2

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4
Q

Punto medio

A

x=x1+x2/2

y=y1+y2/2

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5
Q

Dividir segmento en tercios

A
3AC= AB
AD= 2/3 AB
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