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Arjun claims: 'If two triangles are similar with scale factor 3, the bigger one has 3 times the area of the smaller.'
What is the correct factor for the area?

Class 10Similarity and CongruenceGeometry — Similarity
  • A9
  • B10
  • C18
  • D8

Step-by-Step Solution

Area scales as the square of the linear scale factor: , not 3. Arjun is wrong.
Answer: A) 9

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