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In triangle ABC, AB = 5 cm and BC = 7 cm. Which could be the length of AC?

Class 7Triangle InequalityTriangles
  • A12 cm
  • B2 cm
  • C10 cm
  • D13 cm

Step-by-Step Solution

AC must be more than 7 − 5 = 2 cm and less than 7 + 5 = 12 cm. Only 10 cm fits; 2 cm and 12 cm are the boundary values themselves.
Answer: C) 10 cm

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