# Copy of Discovering Trig Ratios

Take one of the hints below and follow the instructions on it. Try and make a general statement about what you find and see if you can use what you have found to make an “If ….. then …..” statement.
Make β = 45º Move B to make AB = 5 What do you notice? What did this lead you to try? What did you discover? So if……then ..…. Make β = 30º Move B to make BC a whole number What do you notice? What did this lead you to try? What did you discover? So if……then ..…. Make β = 60º Move B to make AC a whole number What do you notice? What did this lead you to try? What did you discover? So if……then ..…. Pick any value for β Click on O/A button Move B What do you notice? What did this lead you to try? What did you discover? So if……then ..…. Pick any point for B Click on the O/A O/H and A/H buttons Change the value of β What do you notice? What did this lead you to try? What did you discover? So if……then ..…. Pick any point for B Click on the O/A, O/H and A/H buttons Use your calculator to find Sin β (eg Sin 30º) What do you notice? What did this lead you to try? What did you discover? So if……then ..….