Answers

2014-09-30T09:56:49+08:00
Law of sines

sinB = bsinA/ a
sinB = (51.8)sin(33'40'')/ (31.5)
B = 65 (degrees) 43'46''

C= 180 - (A+B)
C= 180- [33'40'' + 65(degrees)43'46'']
C= 80(degrees)36'14''

c= asinC/sinA
c= (31.5)sin[80(degrees)36'14'']/ sin(33'40'')
c= 56.05

Sorry if it's late
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