Question
Ken used 3 elastic bands to form the sides of triangle FGH where FG = 9 cm, GH = d cm and FH = 3d cm. Vincent stretches two of the elastic bands and enlarges triangle FGH. The sides GH and FH are stretched to 3 times its original length. What is the perimeter of the stretched triangle FGH?
2 m

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Ken used 3 elastic bands to form the sides of triangle FGH where FG = 9 cm, GH = d cm and FH = 3d cm. Vincent stretches two of the elastic bands and enlarges triangle FGH. The sides GH and FH are stretched to 3 times its original length. What is the perimeter of the stretched triangle FGH?