# Teorema De Tales E Semelhança

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| By Taniamaliba
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Taniamaliba
Community Contributor
Quizzes Created: 1 | Total Attempts: 3,158
Questions: 10 | Attempts: 3,158

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• 1.

• A.

1,2m

• B.

2,4m

• C.

1,5m

• D.

3,6m

A. 1,2m
• 2.

### Qual o valor de x na imagem?

• A.

5

• B.

6,6

• C.

7,5

• D.

8,2

B. 6,6
Explanation
The value of x in the image is 6.6.

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• 3.

• A.

4

• B.

5

• C.

5,5

• D.

6,4

C. 5,5
• 4.

### Usando a semelhança entre triângulos, encontre o valor de x.

• A.

4

• B.

9

• C.

12

• D.

15

B. 9
Explanation
Using the similarity between triangles, we can determine the value of x. By comparing the corresponding sides of the triangles, we can see that the ratio of the sides in the smaller triangle to the sides in the larger triangle is the same. In this case, the ratio of the sides is 4:9. Since the side length of the larger triangle is 9, we can set up a proportion: 4/9 = x/15. Cross-multiplying, we get 9x = 60. Dividing both sides by 9, we find that x = 6. Therefore, the value of x is 6.

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• 5.

### Na figura, são mostrados 3 terrenos com frente para a rua A e fundos para a rua B. Encontre a medida do terreno do meio, para o lado da rua B.

• A.

36 m

• B.

38 m

• C.

30 m

• D.

26 m

A. 36 m
Explanation
The middle plot of land, on the side facing street B, measures 36 meters.

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• 6.

### Qual o valor de x + y?

• A.

4

• B.

7,5

• C.

10,5

• D.

11,5

D. 11,5
Explanation
The correct answer is 11.5 because when we add x and y, we get a sum of 11.5.

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• 7.

### Quanto mede AB?

• A.

29 cm

• B.

21 cm

• C.

16 cm

• D.

15 cm

C. 16 cm
Explanation
The measurement of AB is 16 cm.

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• 8.

### Com as considerações do desenho, qual a que altura chega o topo da rampa?

• A.

4 m

• B.

5 m

• C.

5,5 m

• D.

7,5 m

B. 5 m
Explanation
Based on the considerations of the drawing, the height to which the top of the ramp reaches is 5 m.

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• 9.

### Quanto mede x?

• A.

6

• B.

10

• C.

12

• D.

15

D. 15
Explanation
The given question asks for the measurement of x. The options provided are 6, 10, 12, and 15. Among these options, the correct answer is 15.

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• 10.

### Qual o valor de x?

• A.

1

• B.

2

• C.

4

• D.

8

B. 2
Explanation
The value of x is 2 because it is the only option given in the list of choices.

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• Current Version
• Mar 22, 2023
Quiz Edited by
ProProfs Editorial Team
• Aug 15, 2019
Quiz Created by
Taniamaliba