Question
Michael used 3 elastic bands to form the sides of triangle XYZ where XY = 6 cm, YZ = r cm and XZ = 2r cm. Jenson stretches two of the elastic bands and enlarges triangle XYZ. The sides YZ and XZ are stretched to 3 times its original length. What is the perimeter of the stretched triangle XYZ?
2 m

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Michael used 3 elastic bands to form the sides of triangle XYZ where XY = 6 cm, YZ = r cm and XZ = 2r cm. Jenson stretches two of the elastic bands and enlarges triangle XYZ. The sides YZ and XZ are stretched to 3 times its original length. What is the perimeter of the stretched triangle XYZ?