Final answer:
To find the measure of an unknown angle using variables, you can follow these steps: Identify the knowns, solve the equation for the unknown, substitute known values into the equation, and check if the answer is reasonable.
Step-by-step explanation:
- Make a list of what is given or can be inferred from the problem as stated (identify the knowns).
- Solve the appropriate equation or equations for the quantity to be determined (the unknown).
- Substitute the known values along with their units into the appropriate equation, and obtain numerical solutions complete with units. Be sure to use units of radians for angles.
- Check your answer to see if it is reasonable: Does your answer make sense?