maths
posted by claire philips .
Compass bearings of a carin are taken from two points A and B, 400 m apart, along a strsight northsouth path, A being due north of B. the bearings of the carin from A and B are 110 degrees and 80 degrees, respectively. choose the two options which give the distances from A and B to the carin, correct to the nearest metre.
A. 402 m
B. 752 m
C. 757 m
D. 769 m
E. 787 m
F. 788 m
G. 877 m
H 878 m
I am thinking B and F?? Or maybe C?
Compass bearings of a carin are taken from two points A and B, 400 m apart, along a strsight northsouth path, A being due north of B. the bearings of the carin from A and B are 110 degrees and 80 degrees, respectively. choose the two options which give the distances from A and B to the carin, correct to the nearest metre.
A. 402 m
B. 752 m
C. 757 m
D. 769 m
E. 787 m
F. 788 m
G. 877 m
H 878 m
I am thinking B and F?? Or maybe C?
400/sin30 = AC/sin70 making AC = 752
400/sin30 = C/sin80 making AC = 788
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