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The straight-line distance from Delhi to Agra is about 180 km and from Agra to Jaipur about 220 km. Which could be the straight-line distance from Delhi to Jaipur?

Class 7Triangle InequalityTriangles
  • A30 km
  • B450 km
  • C240 km
  • D400 km

Step-by-Step Solution

The three cities form a triangle, so Delhi–Jaipur must be more than 220 − 180 = 40 km and less than 220 + 180 = 400 km. Only 240 km fits (the real distance is about 240 km).
Answer: C) 240 km

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