# Unit Quiz: Trigonometry 1

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## Q1.Has this triangle been correctly labelled? 1. Yes
2. No

1. No

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

1. Adjacent and opposite need switching
2. Hypotenuse and opposite need switching
3. It’s not incorrect
4. None of these

1. None of these

## Q3.Which is the correct trigonometric ratio to use to calculate length y? 1. Sine
2. Cosine
3. Tangent

1. Sine

## Q4.Which trig ratio would I use to calculate the diameter of this circle? 1. sine
2. cosine
3. tangent

1. 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? 1. x = 1.5 m
2. x = 6 m
3. x = 4.70 m

1. 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 1. 5.4 m
2. 11.9 m
3. 13.4 m
4. 7.2 m

1. 7.2 m

## Q7.Find the perpendicular height of this parallelogram to 1 decimal place 1. 10.6 cm
2. 3.5 cm
3. 3.54 cm
4. 10 cm

1. 10.6 cm

## Q8.Solve this equation to 2 decimal places 1. x = 5.32
2. x = 0.19
3. x = 4.70

1. x = 5.32

## Q9.Find the length of y, to 3 significant figures 1. 1.59 m
2. 1.60 m
3. 0.16 m
4. 6.10 m

1. 1.60 m

## Q10.Here is a right-angled isosceles triangle. Find the length AC to 2 decimal places. 1. 7.07 cm
2. 3.5 cm
3. 3.54 cm
4. 0.14 cm

1. 3.54 cm

## Q11.4. Find the radius of this circle, to 3 significant figures. xy = 5.5 cm and angle xyz = 40 1. 7.18 cm
2. 3.89 cm
3. 3.59 cm
4. 7.78 cm

1. 3.59 cm

## Q12.Solve the equation to 1 decimal place 1. x = 28.3
2. x = 200.0
3. x = 10.0
4. x = 20.0

1. x = 20.0

## Q13.Find the length of y, to 3 significant figures 1. 2.83 m
2. 6.23 m
3. 0.16 m

1. 2.83 m

## Q14.Find the length AC, to 2 decimal places 1. 0.14 km
2. 6.95 km
3. 9.29 km

1. 6.95 km

## Q15.Find the perimeter of this rectangle, to 3 significant figures 1. 15.8 cm
2. 31.5 cm
3. 47.3 cm
4. 15.77 cm