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Match the solid with the development method it requires.

1. Cylinder   2. Cone   3. Transition piece

P. Radial line   Q. Parallel line   R. Triangulation

  • A.1-Q, 2-R, 3-P
  • B.1-R, 2-P, 3-Q
  • C.1-Q, 2-P, 3-R
  • D.1-P, 2-Q, 3-R

Answer: C

Parallel equal generators call for the parallel line method, generators converging on an apex for the radial method, and a surface with neither for triangulation. Identifying which of the three applies is the first step in any development.

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