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Quiz

Cambridge Mathematics 9: Trigonometry (extension)

10 questions with solutions on the Cambridge Mathematics 9 topic: sine, cosine and tangent in right-angled triangles, finding sides and angles.

Type the number or choose the right answer. When you finish, click Check answers and see the solutions.

1. In a right-angled triangle, sin θ is:

2. In a right-angled triangle, tan θ is:

3. Opposite 3, hypotenuse 5. sin θ = ?

4. Adjacent 4, hypotenuse 5. cos θ = ?

5. Both shorter sides are 5 cm. How many degrees is θ?

6. sin 30° = ?

7. tan 45° = ?

8. Hypotenuse 10 cm, angle 30°. How many cm is the opposite side?

9. Adjacent 8 cm, angle 45°. How many cm is the opposite side?

10. sin θ = 1/2 (θ is acute). How many degrees is θ?