Formulas Flashcards

1
Q

Formula da area de um triangulo equilatero

A

A=l²raiz□3/4

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2
Q

Formula altura de um triangulo equilatero

A

H=l.raiz□3/2

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3
Q

Formula diagonal de um quadrado

A

d=l.raiz□2

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4
Q

Formula da area de um circulo

A

A=pi.r²

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5
Q

Formula da circunferencia

A

C=2.pi.r

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6
Q

Formula area de um losango

A

A=D.d/2

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7
Q

Formula da area de um triangulo

A

A=b.h/2

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8
Q

Formula area de um trapezio

A

A=(B-b).h/2

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9
Q

Relações metricas triangulo retangulo

A

A.h=b.c

h²=m.n

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10
Q

Formula para descobrir tangente

A

Tg=cO/cA TOA

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11
Q

Formula para descobrir o seno

A

Sen=cO/H SOH

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12
Q

Formula para descobrir cosseno

A

Cos=cA/H CAH

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13
Q

Formula lei dos cossenos

A

a²=b²+c²-2.b.c.cos

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14
Q

Fórmula da area de um triangulo circunscrito

A

A=(semi perimetro).r

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15
Q

Fórmula da area de um triangulo inscrito

A

A= a.b.c/4.r

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16
Q

Teorema da area

A

A=a.b.sen/2

17
Q

Formula de heron

A

A=raiz□p.(p-a).(p-b).(p-c)

18
Q

Relações metricas no triangulo retangulo

A

A.h=b.c (b, c = catetos)

h²=m.n (m e n = projeções dos catetos)

C²=m.a (m=projeção do cateto c)

B²=n.a (n=projeção do cateto b)

19
Q

Lei dos senos

A

A/senA=B/senB…..=2R