Xiao Ming s ping pong ball fell under the sofa, there was no flashlight, and Xiao Ming used the plan

Updated on Sofa 2024-06-20
2 answers
  1. Anonymous users2024-01-24

    The magnitude of the angle of incidence i is 60°

    The angle of reflection is also 60°

  2. Anonymous users2024-01-23

    Make the bisector of the corner in the diagram first, and then the perpendicular line of the bisector. The perpendicular line is the position of the plane mirror.

    The angle of incidence and reflection are all 60 degrees.

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