Teorema de Tales Feixe de Paralelas Transversal.
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Transcript of Teorema de Tales Feixe de Paralelas Transversal.
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Teorema de Tales
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Feixe de Paralelas
Transversal
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a
b
c
de
A●
B●
C●
D●
E●
F●
G●
H●
Hipótese:• a//b//c• AB = BC~
Tese
DE = EF~
AB = DG~
BC = EH~
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a
b
c
d e
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a
b
c
d e
4
8
3
?
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a
b
c
d
e
2
6
?
21
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a
b
c
de
?
9
4
6
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a
b
c
de
?
?
4
328
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ConsequênciaQuando uma paralela a um dos lados de um triângulo intercepta os outros lados, ela determina sobre esses lados segmentos proporcionais.
●
● ●
A
C B
●●DE
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●
● ●
A
C B
●●DE
4
6
5
?
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● ●
A
C B
●●DE
4
6
5
x
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● ●
A
C B
●●DE
3
5
?16
?
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Rua
A Rua
B
60 m 40 m
50 m
? Rua Principal