Checking and securing understanding of trigonometric ratios

12 questions

1. Trigonometric functions are commonly defined as ratios of two sides of a right-angled triangle for a given angle. Select the trigonometric functions.
2. What functions do we use to find a missing angle when provided with two sides in a right-angled triangle?
3. Which of the following calculations will calculate the answer to the length e?
4. Which of the following are equivalent to \cos(\theta°)=\frac{\text{adj}}{\text{hyp}}?
5. Which of the following are equivalent to \tan(\theta°)=\frac{\text{opp}}{\text{adj}}?
6. Which of the following are equivalent to \sin(\theta°)=\frac{\text{opp}}{\text{hyp}}?
7. What trigonometric ratio would you use to work out the length k?
8. What trigonometric ratio would you use to work out the length b?
9. What trigonometric ratio would you use to work out the length e?
10. Work out the length b to 1 decimal place.
11. Work out the length e to 1 decimal place.
12. A right angled triangle is drawn and an angle x is indicated. The opposite length to x is labelled a, the adjacent length to x is b and the hypotenuse is c.

License: OGL