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If two sides of a triangle are 12 cm and 7 cm, how many integer values are possible for the third side?

Class 9Inequalities in a TriangleGeometry — Triangles
  • A13
  • B12
  • C14
  • D26

Step-by-Step Solution

Third side satisfies 12-7 < < 12+7, i.e. 5 < < 19. Integers from 6 to 18 inclusive = 18-6+1 = 13 values.
Answer: A) 13

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