<prompt> Kwenye mstari wa nambari ulioonyeshwa, AE 40 cm, AD 30 cm, BE 20 cm, na C ni katikati ya overlineBD. Kwa sentimita, AC ni nini? asy ukubwa8cm;jozi A,B,C,D,E;A 0,0;B 2,0;D 3,0;E 4,0;C BD2;chora-.5,0--4.5,0,Mishale;nukta A;nukta B;nukta C;nukta D;nukta E;leboA,A,S;leboB,B,S;leboC,C,S;leboD,D,S;leboE,E,S;asy  <response>: Tuna ABBD30textcm, BDDE20text cm, na ABBDDE40textcm. Kujumlisha milinganyo miwili ya kwanza na kutoa ya tatu inatoa BD30textcm20textcm-40textcm10 cm. Kwa hivyo, BCBD25text cm, ABAD-BD20text cm, na ACABBC5text cm20text cm25maandishi cm. 