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Geometric definitions

Three students attempt to define the geometric object called an angle.
Can you match the teacher's comments to the definitions?
Definition of an angle
Teacher's comments
  • Ivy's definition: The space between two intersecting lines.
  • Ethan's definition: A figure formed by two rays, called the sides of the angle, that share a common endpoint, called the vertex of the angle.
  • Ebuka's definition: The exact degree of a rotation of a geometric figure in a coordinate plane.
  • Excellent! You have a razor sharp intellect!
  • Your definition is incorrect, and its precise meaning is unclear.
  • Angle measures help us describe rotations, but your definition doesn't work for the geometric object we call an angle.