Question

solve the triange. approximate values to the nearest tenth if necesary

C= 131.6. a= 81.5ft A= 11.2

B=

b=

C=

Answer 1

Solution А let A, B, C be angles and a, bic be their comes ponding Alder By sine Rule С a 2- b sinB С SinA a C sinc Here, C: 1316. QE 81.5 H A- 11.2° Apply 9 sinA sinc 81.5 с 12 sin 11.2 sin 131.6 C = 81.5 sin 131.6 sin 11.2 C. 3/3.8 ft AtBtC = = 180° Sum of ongles of triangle 1.27 Bt 13).6 = 180 B = 37.2°

AB a 12 sinA b sing 81.5 b sin 11.2 sin 37.2 b 81.5 sin 37.2 sin 11.2 81.580.605 0.194 1 b- b= 954.2 ft 80, B = 37.2° b= 254 12 ft C = 3 13.8 ft