Question
George used 3 rubber bands to form the sides of triangle NPQ where NP = 7 cm, PQ = a cm and NQ = 4a cm. Fred stretches two of the elastic bands and enlarges triangle NPQ. The sides PQ and NQ are stretched to 2 times its original length. What is the perimeter of the stretched triangle NPQ?
2 m

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George used 3 rubber bands to form the sides of triangle NPQ where NP = 7 cm, PQ = a cm and NQ = 4a cm. Fred stretches two of the elastic bands and enlarges triangle NPQ. The sides PQ and NQ are stretched to 2 times its original length. What is the perimeter of the stretched triangle NPQ?