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Arjun says: 'A triangle can have all three angles equal to 50° each.'
Is Arjun correct, and why?

Class 9Angle Sum of a TriangleGeometry — Lines and Angles
  • ACorrect, because 50° is acute
  • BIncorrect, sum would be 150° not 180°
  • CCorrect, all triangles allow it
  • DIncorrect, angles must be 90°

Step-by-Step Solution

Three angles of 50° give 150°, but a triangle's angles must total 180°, so it is impossible.
Answer: B) Incorrect, sum would be 150° not 180°

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