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Mathematics
Alfredo
17 June, 17:56
Solve the triangle. B=36 a=41 c=20
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Yareli Hale
17 June, 18:31
0
Use cosine rule:-
b^2 = 41^2 + 20^2 - 2*20*41*cos 36
= 754.21
b = 27.5
you can now find angle A using the sine rule
27.5 / sin 36 = 41 / sin A
sin A = 0.87633
< A = 61.2 degrees
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