Question
David used 3 stretchable bands to form the sides of triangle VWX where VW = 7 cm, WX = k cm and VX = 3k cm. Tim stretches two of the elastic bands and enlarges triangle VWX. The sides WX and VX are stretched to 2 times its original length. What is the perimeter of the stretched triangle VWX?
2 m

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David used 3 stretchable bands to form the sides of triangle VWX where VW = 7 cm, WX = k cm and VX = 3k cm. Tim stretches two of the elastic bands and enlarges triangle VWX. The sides WX and VX are stretched to 2 times its original length. What is the perimeter of the stretched triangle VWX?