Step-by-step Answer
PAGE: 796SET: ExercisesPROBLEM: 1
Please look in your text book for this problem Statement

The measure are .

Apply law of cosines to determine c.

     (Substitute )

Take square root each side.

Find A

                (Apply Law of sines)

           (Substitute )

Apply Cross multiplication then .


Divide each side by 6.5

Apply inverse function.

The sum of the angle measures of a triangle is .

             (Substitute )

Subtract 103 from each side.

The value of  ,, .


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