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Across

1. is the portion that is left after the top containing the APEX has been removed

5. A development technique used for an object having a single, curved surface

7. in which the joining edges and faces are perpendicular to the base faces

Down

2. is the application of geometrical principles to three-dimensional objects. the three-dimensional objects can be either solid or fabricated

3. is a method of pattern development used to develop patterns of objects that have a tapering form with lines converging at a common center

4. Having the ability to have a thin sheet of flexible material wrapped smoothly about a surface

6. The line common to both surfaces when two surfaces meet

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