Shape and Space 5
2 marks · NormalA square has been enlarged by scale factor about the origin to produce a new square. The sides of the new square are 12 units long, and the original square's sides are 4 units long. Find the value of .
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3
Common mistakes: Using the wrong ratio (4/12)
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Marking points
M1 · 1 mark · Sets up correct ratio for scale factor: .
A1 · 1 mark · Final answer: 3. (follow-through)
Worked solution
Scale factor: .