Two similar shapes have corresponding lengths in the ratio 1 : 4. The smaller has area 9 cm². The area of the larger is:

  1. 36 cm²
  2. 576 cm²
  3. 153 cm²
  4. 144 cm²
Answer

D) 144 cm²

Area ratio = 1 : 16, so the larger area is 9 16 = 144 cm². SLO M-09-B-17 · Understanding

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