Question
Albert used 3 elastic bands to form the sides of triangle ABC where AB = 6 cm, BC = r cm and AC = 4r cm. Daniel stretches two of the elastic bands and enlarges triangle ABC. The sides BC and AC are stretched to 2 times its original length. What is the perimeter of the stretched triangle ABC?
2 m

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Albert used 3 elastic bands to form the sides of triangle ABC where AB = 6 cm, BC = r cm and AC = 4r cm. Daniel stretches two of the elastic bands and enlarges triangle ABC. The sides BC and AC are stretched to 2 times its original length. What is the perimeter of the stretched triangle ABC?