<prompt> Kwa kuzingatia angle1angle2180circ na angle3angle4, find angle4. Eleza jibu lako kwa digrii. asy AMC8 1997 12 Tatizo jozi A0,0, B24,0, C48,0, D18,24, E12,48;kalamu p1mmnyeusi;kuchoraA--C;kuchoraA--E;kuchoraB--E;kuchora D--C;lebo70, A, NE;lebo40, shift0,-7E, S;lebo1, B, NW;lebo2, B, NE;lebo3, shift-4,0C, NW;lebo4, shift1,-3D, SE;choraMduara15,40, .5;choraMduara5.3,3.8, .5;asy  <response>: Kwa kuwa jumla ya pembe za pembetatu ni 180circ, 40circ70circpembe 1180circ na angle 170circ. Hii ina maana kwamba pembe 2110circ. Kisha 110circpembe 3pembe4180circ, hivyo pembe 3pembe 470circ na pembe 3pembe435circ. asy AMC8 1997 12 Tatizo jozi A0,0, B24,0, C48,0, D18,24, E12,48;kalamu p1mmnyeusi;kuchoraA--C;kuchoraA--E;kuchoraB--E;kuchora D--C;lebo70, A, NE;lebo40, shift0,-7E, S;lebo1, B, NW;lebo2, B, NE;lebo3, shift-4,0C, NW;lebo4, shift1,-3D, SE;choraMduara15,40, .5;choraMduara5.3,3.8, .5;asy 