A circle with four chords. What is the segment length x in terms of lengths a, b and c?
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Solution
The length x=ab/c-c.
Poem
Major or minor chords
To learn or to begin
Written with letters
Or with delta triangles
They are with intervals
To sound dark or loud
And are the instrument’s heart
To allow the harmony to start
And for the fingers to be smart
So they put away the tension
For poetry in motion
