Question
Perry used 3 elastic bands to form the sides of triangle KLM where KL = 10 cm, LM = h cm and KM = 3h cm. Billy stretches two of the elastic bands and enlarges triangle KLM. The sides LM and KM are stretched to 3 times its original length. What is the perimeter of the stretched triangle KLM?
2 m

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Perry used 3 elastic bands to form the sides of triangle KLM where KL = 10 cm, LM = h cm and KM = 3h cm. Billy stretches two of the elastic bands and enlarges triangle KLM. The sides LM and KM are stretched to 3 times its original length. What is the perimeter of the stretched triangle KLM?