SOLUTION: Please help me solve this trigo problem. A field is triangular in shape with sides 470, 510 and 730. To the nearest degree, what are the measures of the angles of the triangular f

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Question 96835: Please help me solve this trigo problem.
A field is triangular in shape with sides 470, 510 and 730. To the nearest degree, what are the measures of the angles of the triangular field?

Answer by winson55(5) About Me  (Show Source):
You can put this solution on YOUR website!
You use cosine rule[cos angle you want to find=addition of the two side with the angle in the middle-another side divide by the multiplication of the two side mentioned above]
after that u will get one angle
do that 1 more time to find another angle
after that use 180 degrees - both of them you can find the third angle
reason[angle sum of a triangle]