Question
Mark used 3 elastic bands to form the sides of triangle HJK where HJ = 9 cm, JK = n cm and HK = 3n cm. Eric stretches two of the elastic bands and enlarges triangle HJK. The sides JK and HK are stretched to 2 times its original length. What is the perimeter of the stretched triangle HJK?
2 m

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Mark used 3 elastic bands to form the sides of triangle HJK where HJ = 9 cm, JK = n cm and HK = 3n cm. Eric stretches two of the elastic bands and enlarges triangle HJK. The sides JK and HK are stretched to 2 times its original length. What is the perimeter of the stretched triangle HJK?