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Nina [5.8K]
4 years ago
11

In the diagram below of right triangle KMI, altitude IG is drawn to hypotenuse KM.

Mathematics
1 answer:
Yanka [14]4 years ago
6 0

The length of GM is 16. It is obtained from the right triangle KMI, altitude IG is drawn to hypotenuse KM and KG = 9 and IG= 12.

Step-by-step explanation:

The given is,

                  Right triangle KMI

                  KG = 9

                  IG= 12

Step:1

                From the triangle KMI,

                           90° = ∅_{1} + ∅_{2}.................................(1)

                From the triangle KGI,

                Trignometric ratio,

                          tan ∅_{1} = \frac{Opp}{Adj}.................................(2)

                Where, Opp = 9

                               Adj = 12

               Equation (2) becomes,

                          tan ∅_{1} = \frac{9}{12}

                                     = 0.75

                                 ∅_{1} = tan^{-1} 0.75

                                 ∅_{1} = 36.87°

              From the equation (1),

                                 ∅_{2} =  90° - ∅_{1}

                                      = 90° - 36.87°

                                ∅_{2} = 53.13°

             From the triangle IGM,

                           tan ∅_{2} = \frac{Opp}{Adj}..........................(3)

              Where, Opp = GM

                             Adj = 12

                               ∅_{2} = 53.13°

             Equation (2) becomes,

                   tan 53.13° = \frac{GM}{12}

                             GM = (1.333)(12)

                                    = 15.999

                             GM ≅ 16

Result:

            The length of GM is 16. It is obtained from the right triangle KMI, altitude IG is drawn to hypotenuse KM and KG = 9 and IG= 12.

           

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