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central and and circumferential ngle

Task

Another way to let students explore the relationship between these two angles is a worksheet with a question, so the student gets feedback on his conclusion.

relationship between a central and a circumferential angle on the same circular arc

Stappenplan

step 1       Toolbar ImageSelect the Point tool and clik on the circle to create a point C. 
step 2Toolbar ImageSelect the Segment tool and click on the points A and C to create a segment. Click on the points B and C to create a second segment. Remark: you can create both segments as well with the commands Segment(AC) and Segment(BC).
step 3Toolbar ImageSelect the Angle tool and click respectively on the points A, C and B to create the circumferential angle in C on the given circular arc AB.
Drag the points A, B and C. What do you see?

The circumferential angle on a circular arc equals

Select all that apply
  • A
  • B
  • C
Check my answer (3)