Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 17
raight-edge for drawing a straight line, already spoken of in § 21; andthe compasses, for constructing circles or arcs of circles, andfor transferring line segments from one position to another. Thus to add two lines,as AB and CD, draw,with a ruler, a straightline OX. Place one legof the compasses… … Ex. 1. Can a straight Hne move so that its path will not be a surface ?If so, how ? Ex. 2. Can a curved line move in space so that its path will not be asurface ? If so, how ? Ex. 3. Can a broken line move in space so that its path will not be asurface ? Ex. 4. Draw three lines as AB, CD, and j r%…
Geometry, Plane · Geometry, Solid
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