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IN UNA STESSA CIRCONFERENZA (O IN CIRCONFERENZE...
IN UNA STESSA CIRCONFERENZA (O IN CIRCONFERENZE CONGRUENTI)CORDE CONGRUENTI SONO UGUALMENTE DISTANTI DAL CENTRO E VICEVERSA.
IN UNA STESSA CIRCONFERENZA (O IN CIRCONFERENZE CONGRUENTI)CORDE CONGRUENTI SONO UGUALMENTE DISTANTI DAL CENTRO E VICEVERSA.