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Βιβλία Βιβλία 1 - 10 από 142 για THEOREM. Every section of a sphere, made by a plane, is a circle..
" THEOREM. Every section of a sphere, made by a plane, is a circle. "
Elements of Geometry: On the Basis of Dr. Brewster's Legendre : to which is ... - Σελίδα 196
των James Bates Thomson - 1844 - 237 σελίδες
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A Treatise on Plane and Spherical Trigonometry

Robert Woodhouse - 1819 - 264 σελίδες
...called rectangular, isosceles, equilateral, in the same cases that a plane triangle is. PROPOSITION I. Every section of a sphere made by a plane is a circle. Let An Em be the plane, draw CO * perpendicular to it, which consequently, (by Euclid, Book XI. Def. 3.)...

Elements of Geometry

Adrien Marie Legendre - 1819 - 208 σελίδες
...diameters also are equal, and each double of the radius. 439. It will be demonstrated art. 452, that every section of a sphere made by a plane is a circle. This being supposed, we call a great circle the section made by a plane which passes through the centre,...

Elements of Geometry and Trigonometry: With Notes

Adrien Marie Legendre - 1822 - 367 σελίδες
...circular sector, ; as DCF or FCH, describes a solid, which is named a spherical sector. PROPOSITION I. THEOREM. Every section of a sphere, made by a plane,...CO perpendicular to the plane AMB ; and different A| lines CM, CM to different points of the curve AMB, which terminates the section. The oblique lines...

Elements of Geometry

Adrien Marie Legendre - 1825 - 224 σελίδες
...diameters also are equal, and each double of the radius. 439. It will be demonstrated art. 452, that every section of a sphere made by a plane is a circle. This being supposed, we call a great circle the section made by a plane which passes through the centre,...

The Builder's Complete Guide: Comprehending the Theory and Practice of the ...

Charles Frederick Partington - 1825 - 304 σελίδες
...be circles, provided that the axis of the cylinder, or cone, tend to the centre of the sphere. For every section of a sphere made by a plane is a circle, and every section of a right cylinder, or cone, perpendicular to the axis, is also a circle. Let the...

Elements of Geometry...: Translated from the French for the Use of the ...

Adrien Marie Legendre, John Farrar - 1825 - 224 σελίδες
...circular sector as DCF, or FCH, describes a solid which is called a spherical sector. THEOREM. 452. Every section of a sphere made by a plane is a circle. Fig. 221. Demonstration. Let AMB (fig. 221) be a section, made by a plane, of the sphere of which C...

The Principles of Analytical Geometry ...

Henry Parr Hamilton - 1826 - 326 σελίδες
...the resulting expression reduced, we have which is the equation to a circle. Whence it appears that every section of a sphere, made by a plane, is a circle. 327. PROF. 5. To find the equation to a tangent plane drawn through a given point (x', y , z) of the...

Elements of Geometry and Trigonometry: With Notes

Adrien Marie Legendre - 1828 - 316 σελίδες
...circular sector, as DCF or FCH, describes a solid, which is named a spkericat sector. * THEOREM. 452. Every section of a sphere, made by a plane, is a circle, Let AMB be a section, made by a plane, in the sphere whose centre is C. From the point C, draw CO perpendicular...

A Synopsis of the Principal Formulae and Results of Pure Mathematics

Charles Brooke - 1829 - 358 σελίδες
...(W. Ch. v; L. 72—84; Leg. 53—7; C. 559—615.) SPHEEICAL TRIGONOMETRY. (21.) General Principles. Every section of a sphere made by a plane is a Circle. The distance between the poles of two great circles is equal to the inclination of their planes. The...

A syllabus of a course of lectures upon trigonometry, and the application of ...

Henry Pearson - 1833
...the centre, the equation of the sphere is the same for all positions of the rectangular axes. 208. Every section of a sphere made by a plane is a circle. Let the inclination of the cutting plane to the plane of xy be 0; and let us assume the common section...




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