Angles Formed by 2 Chords
How do we determine the measure of an angle formed by 2 intersecting chords?
Instruction:
1. Fill in the table below. Apply the Central Angle Intercepted Arc Postulate in determining the measures of the arcs DF and CE.
2. To have 3 trials, move any of the points C, D, E, or F.
3. Based on your table entry, write a mathematical equation to determine the m∠CGE.
The activity above shows the Angles of Intersecting Chords Theorem.
Click the link below for the proof of the theorem.