Refresher

Recall that angles in standard position

• have their vertex at the origin (point (0, 0) on the Cartesian plane)
• are formed by an initial arm on the positive x-axis and a terminal arm
• are “swept out” in a counterclockwise direction from the initial arm to the terminal arm
  
  
   
  

Open Cartesian Plane. Review the four quadrants in the Cartesian plane.

Review the relationships between the terms to subtend, central angle, and arc in Subtend.

Go back to the Are You Ready? section and try the questions again. If you are still having difficulty, contact your teacher.