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A triangle has sides cm, 7 cm and 11 cm. Which value can NOT take?

Class 7Triangle InequalityTriangles
  • A18
  • B17
  • C5
  • D10

Step-by-Step Solution

must be more than 11 − 7 = 4 and less than 11 + 7 = 18. 5, 10 and 17 all fit; 18 does not.
Answer: A) 18

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