<prompt> Kama inavyoonyeshwa hapa chini, pentagoni mbonyeo ABCDE ina pande AB3, BC4, CD6, DE3, na EA7. Pentagoni hapo awali imewekwa kwenye ndege ikiwa na kipeo A kwenye asili na kipeo B kwenye mhimili chanya x. Pentagoni kisha inaviringishwa kwa mwendo wa saa kwenda kulia kando ya mhimili wa x-. Ni upande gani utagusa uhakika x2009 kwenye mhimili wa x-?Ingiza AB, BC, CD, DE, au EA.asy unitsize3mm; defaultpenlinewidth.8pt; dotfactor4; jozi A0,0, Ep7dir105, B3dir0; jozi DEpB; jozi Cvipimo vya makutanoMduaraD,6,MduaraB,41; jozi dsA,B,C,D,Ep; nukta ds; kuchoraB--C--D--Ep--A; chora6,6..8,4..8,3,Mshale wa Mwisho6; xaxisx,-8,14,EndArrow3; leboE,Ep,NW; leboD,D,NE; leboC,C,E; leboB,B,SE; lebo0,0A,A,SW; lebo3,katikatiA--B,N; lebo4,katikatiB--C,NW; lebo6,katikatiC--D,NE; lebo3,katikatiD--Ep,S; lebo7,katikatiEp--A,W; asy  <response>: Upande wa overlineAB inashughulikia kipindi 0,3, kisha overlineBC inashughulikia kipindi 3,7, kisha overlineCD inashughulikia muda 7,13, kisha overlineDE inashughulikia muda 13,16, kisha overlineEA inashughulikia muda 16,23, na kisha mchakato unarudiwa. . Vipindi vya kugusa pande vinajirudia na kipindi cha 23.Kwa kuwa 2009 87 cdot 23 8, side overlineCD inagusa uhakika wa 2009. 