Glossary Checklist FAQ

D. The Reference Angle

 

Investigation


Similar, Yet Different




  1. Determine the measures of angles \(a\) through \(g\) on the graph, using your knowledge of quadrants and quadrantal angles.

  2. What patterns do you notice about the angles?

  3. What connection can you make with the angles \(50^\circ\), \(130^\circ\), \(230^\circ\), and \(310^\circ\) and the \(x\)-axis?

  4. What connection can you make with the angles  \(50^\circ\), \(130^\circ\), \(230^\circ\), and \(310^\circ\) and the \(y\)-axis?