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The projection of a point on a plane is the foot of the perpendicular drawn from the point to the plane.
The elements of geometry, in eight books; or, First step in applied logic - Pagina 43
door L J V. Gerard - 1874
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## Plane Geometry

Herbert Edwin Hawkes, William Arthur Luby, Frank Charles Touton - 1920 - 305 pagina’s
...If two oblique lines drawn from a point to a straight line meet the line at unequal distances from the foot of the perpendicular drawn from the point to the line, they are unequal, and the more remote is the greater. HINTS. Extend AC to E, making CR = AC, and draw...
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## Solid Geometry

Charles Austin Hobbs - 1921 - 192 pagina’s
...only plane that can be drawn through AB ± toMN. DEFINITIONS. The projection of a point upon a plane is the foot of the perpendicular drawn from the point to the plane. The projection of a line upon a plane is the locus of the projections of all the points of the...
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## Essentials of Geometry II

...from the given point to the other plane. Definition 22 The projection of a point onto a given plane is the foot of the perpendicular drawn from the point to the plane. Definition 23 The projection of a line onto a plane is the set of points which are projections...
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## A Textbook of Engineering Mathematics: For B.Sc. (Engg.). B.E., B.Tech., M.E ...

N. P. Bali, N. Ch. Narayana Iyengar - 2004 - 1425 pagina’s
...acute angle between the planes. 4.27. PROJECTION ON A PLANE (0 The projection of a point on a plane is the foot of the perpendicular drawn from the point to the plane. Thus f is the projection of P on the plane. (i'i) The projection of segment of a line is the...
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## A First Course of Geometry

...that AB2 = AC2 + CD2+DB2 + twice reot. AC.CD + twice rect. AC . DB + twice rect. CD . DB. 93. DEP. 29. The projection of a point on a straight line is the...foot of the perpendicular drawn from the point to the straight line. DBF. 30. The projection of a straight line on a straight line is the portion of the...
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## The Elements of Plane Geometry

Euclid - 1845 - 262 pagina’s
...is a triangle right-angled at A and AD is an altitude; show that AD2 = rect. BD . DC. 164. DEF. 38. The projection of a point on a straight line is the...foot of the perpendicular drawn from the point to the straight line, produced if necessary. DEF. 39. The projection of a straight line on a straight line...
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## Solid Geometry

1974
...given point on a plane is called its projection, or orthogonal projection, on the plane. Similarly the projection of a point on a straight line is the foot of the perpendicular from the point on the line. Thus, if the axes shown in the diagram, (§1), are rectangular, N is the...
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## Plane Geometry

Royal A. Avery - 1925 - 319 pagina’s
...oblique straight lines drawn from a point to a straight line meet the line at unequal distances from the foot of the perpendicular drawn from the point to the line, the one cutting off the greater distance is the greater. DFCE Given: The point P outside the line AB, PC±AB,...
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