# Unit Quiz: Trigonometry 1

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## Q1. Has this triangle been correctly labelled?

### Options:

- Yes
- No

### Correct Answer:

- No

## Q2. Why has this triangle been incorrectly labelled?

### Options:

- Adjacent and opposite need switching
- Hypotenuse and opposite need switching
- It’s not incorrect
- None of these

### Correct Answer:

- None of these

## Q3. Which is the correct trigonometric ratio to use to calculate length y?

### Options:

- Sine
- Cosine
- Tangent

### Correct Answer:

- Sine

## Q4. Which trig ratio would I use to calculate the diameter of this circle?

### Options:

- sine
- cosine
- tangent

### Correct Answer:

- cosine

## Q5. A ladder leans against a wall. It is 3m away from the wall at an angle of 60 degrees. What is the length of the ladder?

### Options:

- x = 1.5 m
- x = 6 m
- x = 4.70 m

### Correct Answer:

- x = 6 m

## Q6. A man stands exactly 8m from a lamppost. He looks to the top of the lamppost, as shown. What is the height of the lamppost? Answer to 1 dp

### Options:

- 5.4 m
- 11.9 m
- 13.4 m
- 7.2 m

### Correct Answer:

- 7.2 m

## Q7. Find the perpendicular height of this parallelogram to 1 decimal place

### Options:

- 10.6 cm
- 3.5 cm
- 3.54 cm
- 10 cm

### Correct Answer:

- 10.6 cm

## Q8. Solve this equation to 2 decimal places

### Options:

- x = 5.32
- x = 0.19
- x = 4.70

### Correct Answer:

- x = 5.32

## Q9. Find the length of y, to 3 significant figures

### Options:

- 1.59 m
- 1.60 m
- 0.16 m
- 6.10 m

### Correct Answer:

- 1.60 m

## Q10. Here is a right-angled isosceles triangle. Find the length AC to 2 decimal places.

### Options:

- 7.07 cm
- 3.5 cm
- 3.54 cm
- 0.14 cm

### Correct Answer:

- 3.54 cm

## Q11. 4. Find the radius of this circle, to 3 significant figures. xy = 5.5 cm and angle xyz = 40

### Options:

- 7.18 cm
- 3.89 cm
- 3.59 cm
- 7.78 cm

### Correct Answer:

- 3.59 cm

## Q12. Solve the equation to 1 decimal place

### Options:

- x = 28.3
- x = 200.0
- x = 10.0
- x = 20.0

### Correct Answer:

- x = 20.0

## Q13. Find the length of y, to 3 significant figures

### Options:

- 2.83 m
- 6.23 m
- 0.16 m

### Correct Answer:

- 2.83 m

## Q14. Find the length AC, to 2 decimal places

### Options:

- 0.14 km
- 6.95 km
- 9.29 km

### Correct Answer:

- 6.95 km

## Q15. Find the perimeter of this rectangle, to 3 significant figures

### Options:

- 15.8 cm
- 31.5 cm
- 47.3 cm
- 15.77 cm

### Correct Answer:

- 31.5 cm