Find the scale factor of a copy
Divide the new length by the original length.
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A line 5 cm long is drawn 15 cm long on a copy. What is the scale factor of the copy?
Answer: 3
A line 11 cm long is drawn 22 cm long on a copy. What is the scale factor of the copy?
Answer: 2
A line 3 cm long is drawn 12 cm long on a copy. What is the scale factor of the copy?
Answer: 4
Tip: Divide the new length by the original length.
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