Question
Simon used 3 rubber bands to form the sides of triangle MNP where MN = 7 cm, NP = n cm and MP = 2n cm. Neave stretches two of the elastic bands and enlarges triangle MNP. The sides NP and MP are stretched to 2 times its original length. What is the perimeter of the stretched triangle MNP?
2 m

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Simon used 3 rubber bands to form the sides of triangle MNP where MN = 7 cm, NP = n cm and MP = 2n cm. Neave stretches two of the elastic bands and enlarges triangle MNP. The sides NP and MP are stretched to 2 times its original length. What is the perimeter of the stretched triangle MNP?