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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 AND SOLID GEOMETRY

ISAAC NEWTON FAILOR - 1906
...AB only one plane can be passed _L to MN. QED 572 DEFINITION. The projection of a point upon a plane is the foot of the perpendicular drawn from the point to the plane. 573 DEFINITION. The projection of a line upon a plane is the line which contains the projections...
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Plane and Solid Geometry

Elmer Adelbert Lyman - 1908 - 340 pagina’s
...other two sides. 9. Show that a diagonal and a side of a square are incommensurable. 404. Definitions. The projection of a point on a straight line is the foot of the perpendicular from the point to the line. 405. The projection of a given line segment on a straight line is the segment...
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Plane and Solid Geometry

Elmer Adelbert Lyman - 1908 - 340 pagina’s
...oblique lines drawn from the same point to the same straight line meet the line at equal distances from the foot of the perpendicular drawn from the point to the line, they are equal. If they meet the line at unequal distances from the foot of the perpendicular, the...
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New Plane and Solid Geometry

Webster Wells - 1908 - 298 pagina’s
...AB, would be -L MN (§ 391), which is impossible. 396. Def s. The projection of a point on a plane is the foot of the perpendicular drawn from the point to the plane. The projection of a line on a plane is the line which contains the projections of all its points....
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Exercises in Geometry

Grace Lawrence Edgett - 1909 - 81 pagina’s
...isosceles. 6. Two equal oblique lines drawn from a point to a line meet the line at equal distances from the foot of the perpendicular drawn from the point to the line. 7. Prom a given point only two equal straight lines can be drawn to a given line. Group XI. Loci Theorems...
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Secondary-school Mathematics, Volume 2

Robert Louis Short, William Harris Elson - 1911
...above outlined is algebraic, and is the most simple one known. 194. The projection of a point upon a straight line is the foot of the perpendicular drawn from the point to the line. Thus, the projection of the vertex of an isosceles triangle upon the base is the middle point of the...
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Plane and Solid Geometry: Suggestive Method

George Clinton Shutts - 1912 - 376 pagina’s
...— 2 ab. Proof left to the pupil. 335. • PROJECTION OF A POINT. The * projection of a point upon a line is the foot of the perpendicular drawn from the point to the line. If AM is perpendicular to BC, then M is the projection of A upon BC. 336. PROJECTION OP A SECT. The...
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Plane Geometry

Edith Long, William Charles Brenke - 1916 - 276 pagina’s
...area of each part. A a B PLANE GEOMETRY [iii. § 117 117. Definition. The projection of a point on a line is the foot of the perpendicular drawn from the point to the line. From what two Latin words is the word projection derived? Do you find any connection between the original...
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Plane Geometry

Edith Long, William Charles Brenke - 1916 - 276 pagina’s
...area of each part. A a B PLANE GEOMETRY [iiI, § 117 117. Definition. The projection of a point on a line is the foot of the perpendicular drawn from the point to the line. From what two Latin words is the word projection derived? Do you find any connection between the original...
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Plane and Solid Geometry

Webster Wells, Walter Wilson Hart - 1916 - 467 pagina’s
...infinity of planes can be drawn through ABą .aW (§495). 503. The projection of a point on a plane is the foot of the perpendicular drawn from the point to the plane. The projection of a given line on a plane is the line which contains the projections of all...
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