Question

Calcule o valor de X para cada um dos triangulos:

Answer 1

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Aplicando Teorema de Thales

a)
            (10,5)/x = (10,5)(14,7)
                 )10,5).x = (10,5)(14,7)
                            x = (10,5)(14,7)/(10,5)
                                      x = 14,7

b)
               4/x = 7/21
               7x = 21.4
                 x = 21.4/7
                    = 3.4
                                     x = 12

c)
                7/2x = 7/18
                   2x.7 = 7.18
                      2x = 7.18/7
                      2x = 18
                        x = 18/2
                                       x = 9