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        <lastmod>2026-04-08T09:06:17.335923473Z</lastmod>
        
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            <Attribute name="title">Longueur d&#39;un arc de cercle si  les angles sont en radians</Attribute>
            <Attribute name="description">Par exemple, on donne la mesure d&#39;un angle au centre en radians et le rayon du cercle et il faut calculer la longueur de l&#39;arc intercepté.</Attribute>
            <Attribute name="author">pstinchcombe</Attribute>
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