<prompt> Ni eneo gani, katika vitengo vya mraba, la pembetatu ABC? asyukubwa wa kitengo 0.15inch;njia X -6.5, 0--5.5, 0;njia Y 0, -3.5--0, 7.5;kuchoraX; choraY;kwaint n-6; n 5; nikiwa n ! 0 chora n,0.25--n,-0.25 ;kwaint n-3; n 7; nikiwa n ! 0 chora 0.25,n---0.25,n ;jozi A -4,3; jozi B 0,6; jozi C 2,-2;nukta A; nukta B; nukta C;leboA -4,3, A, NW; leboB 0,6, B, NE; leboC 2,-2, C, SE;kuchoraA--B--C--mzunguko;asy  <response>: Bainisha pointi D E na F kama inavyoonyeshwa. Eneo la mstatili CDEF ni jumla ya maeneo ya pembetatu nne BEA, BFC, CDA, na ABC. Maeneo ya pembetatu tatu za kwanza yanaweza kupatikana moja kwa moja kwa kutumia fomula ya eneo frac12baseheight. Eneo la pembetatu ABC ni eneo la mstatili kutoa maeneo ya pembetatu nyingine tatu: 8cdot6-frac12cdot4cdot3-frac12cdot6 cdot5-frac12cdot2cdot819.asyukubwa wa kitengo 0.15inch;njia X -6.5, 0--5.5, 0;njia Y 0, -3.5--0, 7.5;kuchoraX; choraY;kwaint n-6; n 5; nikiwa n ! 0 chora n,0.25--n,-0.25 ;kwaint n-3; n 7; nikiwa n ! 0 chora 0.25,n---0.25,n ;jozi A -4,3; jozi B 0,6; jozi C 2,-2;jozi D -4,-2; jozi E -4,6; jozi F 2,6;nukta A; nukta B; nukta C;nuktaD;kitoneE;kitoneF;leboA -4,3, A, NW; leboB 0,6, B, NE; leboC 2,-2, C, SE;leboD,D,SW; leboE,E,NW;leboF,F,SE;kuchoraA--B--C--mzunguko;kuchoraC--D--E--F--mzunguko;asy 