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 • O • 0 • π/12 • π/6 • π/4 • π/3 • 5π/12 • π/2 • 7π/12 • 2π/3 • 3π/4 • 5π/6 • 11π/12 • π • 13π/12 <div style="position:absolute;left:px;bottom:px">• 7π/6 <div style="position:absolute;left:px;bottom:px">• 5π/4 <div style="position:absolute;left:px;bottom:px">• 4π/3 <div style="position:absolute;left:px;bottom:px">• 17π/12 <div style="position:absolute;left:px;bottom:px">• 3π/2 <div style="position:absolute;left:px;bottom:px">• 19π/12 <div style="position:absolute;left:px;bottom:px">• 5π/3 <div style="position:absolute;left:px;bottom:px">• 7π/4 <div style="position:absolute;left:px;bottom:px">• 11π/6 <div style="position:absolute;left:px;bottom:px">• 23π/12