Respostas

2014-08-05T21:00:41-03:00

largura = x

comprimento = x + 5

perímetro = x + x + x+5 + x+5 = 74

                                          4x = 74 -5 - 5

                                          4x = 64

                                            x = 64/4

                                            x = 16

largura = 16 cm    e comprimento = 16+5= 21 cm

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