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Relating Chords to Their Arcs

Observe how the length of a chord relates to the measure of its arc.

Task 1

Putting It All Together

Answer these open ended questions on your own or with others to form deeper math connections.

Task 2

Based on your observations, is it possible for two congruent chords to intercept minor arcs of different sizes?

Task 3

Based on your observations, is it possible for two congruent minor arcs to intercept chords of different sizes?

Task 4

As you make a chord longer, does the minor arc length increase or decrease?

Task 5

The interactive above shows the case of a minor arc subtended by a chord. Think about what would happen if the major arcs were considered instead. Would your answers to the previous questions change? Please justify your answer for each case.