Question

Solve the triangle. (Round your answers to the nearest whole number.) a = 42 yd, b = 79 yd, c = 62 yd 0 B = 0 0

Answer 1

Sol Guven a = 42 ya, b= 794d, c= 62 4 By law of Cosines. I OS A = 6²+c a - 79 +62 - 422 abc 2(79) (62) GSA 0-849428338 2 2012 (3) GSB ate – 6 uz +62 _ 792 290 GSB = -0. 121543779 B= 970 GS c = azt b ř 42+792-622 zab | 2 (42) (79) - GSC = 0.627034358 ② Given A= 400, a= 29 ft, b = 34 Lt by law of sines. SIHA - SinB SinB = ba sina - SihB=34 sinu0o = 0.753613058 Bar 490 other possible al B is bo= 180° 49°

BE90 B=Lugo we know that surm af all angles in Triangle is 180 (A + B + LC = 180° 40° + H9° +LC = 180° LC = 1800 – 40 – 2190 LC-191 By law of sines. Sinc - Sina r a sinc SinA c = 29x sin 910 Sin 20° anowers : = 1215 ft - ugo, C=91, C= 45 H (1) B7908 B= [1310 we know that At LB + LC= 1800 voot (31°+ LC = 180° - LC'= 9° By law at sines sinc - Sina asince Sina d'= 29x singo sin 40° => d=1] ft Answers B's 1810, c'-a , d = 7 ft. = - c a = Tit