Find c
Round to the nearest tenth

The value of c is 4 feet for the given triangle it is obtained by law of cosines  formula.

Step-by-step explanation:

The given is,

             Triangular diagram with side dimensions

Step:1

             Law of Cosines formula is,

                                      .......................(1)

             From the given diagram,

                                     a = 8 feet

                                     b = 7 feet

                         Angle, C = 32°

           Substitute the values then equation (1) becomes,

           Substitute the value of cos 32°

                                                (∵ )

          Take square root on both sides the above equation becomes,

                                    c  ≅ 4 feet

Result:

          The value of c is 4 feet for the given triangle it is obtained by law of cosines  formula.

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