Como calcular a fração de uma circunferência que equivale a um determinado arco.
Titulo em inglês: arc-length-as-fraction-of-circumference
URL Original: http://www.khanacademy.org/video?v=XFI7GK4Nv-s
Saiba mais em: http://www.fundacaolemann.org.br/khanportugues/
Tagged under: Khan Academy,Portuguê BR,Medida arco como fraç̃ da circunferência.,arc-length--fraction--circumference
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