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The sides of a square are increased by a scale factor of 7. The perimeter of the smaller square is 16 ft. What is the perimeter of the larger square?

4 ft
28 ft
56 ft******
112 ft

2 answers

The perimeter of the original square is 16 ft
so each side is 4 ft
How did I get 4 ft as the length of a side ??

now the new square will be 28 ft on each side, so .....
ok thank you very much Reiny, you teachers at Jiskha are awesome