Descriptive geometry . Fig. 101. a perpendicular to tlie given plane (Art. 62,page 44). 2. Determine the point of piercingof this perpendicular and the plane (Art. 57,page 42). This point of piercing is the re-Cjuired projection of the given point upon thegiAen oblique plane. 64. To project a given line on to a givenoblique plane. Method. If the line is a right line, projecttwo of its points (Art. 63, page 44). If theline is curved, project a sufficient number ofits points to describe the curve. 65. To determine the shortest distance froma point to a plane. PklnCIPLE. The shortest distance fro


Descriptive geometry . Fig. 101. a perpendicular to tlie given plane (Art. 62,page 44). 2. Determine the point of piercingof this perpendicular and the plane (Art. 57,page 42). This point of piercing is the re-Cjuired projection of the given point upon thegiAen oblique plane. 64. To project a given line on to a givenoblique plane. Method. If the line is a right line, projecttwo of its points (Art. 63, page 44). If theline is curved, project a sufficient number ofits points to describe the curve. 65. To determine the shortest distance froma point to a plane. PklnCIPLE. The shortest distance from apoint to a plane is the perpendicular distancefrom the point to the plane. Method. 1. From the given point draAv aperpendicular to the given plane (Art. 44). 2. Determine the point of piercingof the perpendicular and the plane (Art. 57,page 42). 3. Determine the true length ofthe perpendicular between the point and theplane (Art. 39. page 27). 46 DESCRIPTIVE GEOMETRY 66. Shades and Shadows. The graphicrepresentation o


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