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Points, lines, circles, and arcs In this lecture we focus on geometric
construction techniques that are needed to do manual drafting assignments.
Dividing a line into equal parts (4.5.2)
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Points, lines, circles, and arcs (cont.)
Constructing arcs tangent to two lines (4.5.3)
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Points, lines, circles, and arcs (cont.)
Constructing an arc tangent to a line and another arc
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Points, lines, circles, and arcs (cont.)
Constructing an arc tangent to two given arcs or circles
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Points, lines, circles, and arcs (cont.)
Constructing an arc tangent to two given arcs
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Points, lines, circles, and arcs (cont.)
Constructing an arc tangent to a given arc
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Points, lines, circles, and arcs (cont.)
Constructing lines tangent to two circles o arcs, using a straightedge (a trial and error method)
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Conic curves : Ellipses
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Conic curves : Ellipses (cont.)