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Posted a picture... the picture consists of the word problem and the triangle is how I interpreted the problem....

Vector A Components: (0,10)

Vector B Components: ( Cos60*6,Sin60*6)

Vector C Components: (Cos60*6 = 3 , Sin60*6 + 10 = 15) ... ( 3 , 15 )

Vector C = (9 + 225) ^(1/2) = 15

The true answer is 5.66....

What did I do wrong?

Vector A Components: (0,10)

Vector B Components: ( Cos60*6,Sin60*6)

Vector C Components: (Cos60*6 = 3 , Sin60*6 + 10 = 15) ... ( 3 , 15 )

Vector C = (9 + 225) ^(1/2) = 15

The true answer is 5.66....

What did I do wrong?