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Count the number of surfaces (faces) in the given solid.

Mathematics

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2. Count the number of surfaces (faces) in the given solid.

  1. Identify all the distinct flat surfaces of the 3D object.

  2. Count the horizontal surfaces

    • The top surface of the upper block. (1 face)
    • The exposed top surface of the lower block (the "step" surface). (1 face)
    • The bottom surface of the entire solid. (1 face) Total horizontal faces = 3.
  3. Count the vertical surfaces

    • The front surface of the upper block. (1 face)
    • The front surface of the lower block (the part below the upper block
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