Elements of Geometry and Trigonometry |
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Page 13
The whole is greater than any of its parts . 9. The whole is equal to the sum of all its parts . 10. All right angles are equal to each other . 11. From one point to another only one straight line can be drawn . 12.
The whole is greater than any of its parts . 9. The whole is equal to the sum of all its parts . 10. All right angles are equal to each other . 11. From one point to another only one straight line can be drawn . 12.
Page 14
Two straight lines , which have two points common , coincide with each other throughout their whole extent , and form one and the same straight line . F D pose , however , that on being produced , these 4 GEOMETRY .
Two straight lines , which have two points common , coincide with each other throughout their whole extent , and form one and the same straight line . F D pose , however , that on being produced , these 4 GEOMETRY .
Page 21
But the part cannot be equal to the whole ( Ax . 8. ) ; hence , there is no inequality between the sides BA , AC ; therefore , the triangle BAC is isosceles , PROPOSITION XIII . THEOREM . The greater side of every triangle ...
But the part cannot be equal to the whole ( Ax . 8. ) ; hence , there is no inequality between the sides BA , AC ; therefore , the triangle BAC is isosceles , PROPOSITION XIII . THEOREM . The greater side of every triangle ...
Page 22
and the line CD would coincide with CE ; otherwise , a part would be equal to the whole , which is impossible ( Ax . 8. ) . A B PROPOSITION XV . THEOREM . If from a point without a straight line , a perpendicular be let fall on the line ...
and the line CD would coincide with CE ; otherwise , a part would be equal to the whole , which is impossible ( Ax . 8. ) . A B PROPOSITION XV . THEOREM . If from a point without a straight line , a perpendicular be let fall on the line ...
Page 34
Thus , of two magnitudes , one of them may be considered to be divided into some number of equal parts , each of the same kind as the whole , and one of those parts being considered as an unit of measure , the magnitude may be expressed ...
Thus , of two magnitudes , one of them may be considered to be divided into some number of equal parts , each of the same kind as the whole , and one of those parts being considered as an unit of measure , the magnitude may be expressed ...
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Elements of Geometry and Trigonometry from the Works of A. M. Legendre A. M. Legendre No preview available - 2017 |
Common terms and phrases
ABCD adjacent altitude base become Book called centre chord circle circumference circumscribed common cone consequently construction contained corresponding Cosine Cotang cylinder described diameter difference distance divided draw drawn equal equation equivalent evident expressed extremities fall figure follows formed formulas four frustum give given gles greater half hence homologous included inscribed intersection less likewise logarithm manner means measured meet middle multiplied opposite parallel parallelogram parallelopipedon pass perpendicular plane polygon prism PROBLEM produced Prop proportional PROPOSITION pyramid quantities radii radius ratio reason rectangle regular remaining right angles Scholium segment shown sides similar sine solid solid angle sphere spherical triangle square straight line Suppose surface taken tang tangent THEOREM third triangle triangle ABC vertex whole
Bibliographic information
| Title | Elements of Geometry and Trigonometry |
| Author | Adrien Marie Legendre |
| Editor | Charles Davies |
| Translated by | David Brewster |
| Edition | 4 |
| Publisher | A.S. Barnes and Company, 1834 |
| Original from | Harvard University |
| Digitized | 9 Dec 2008 |
| Length | 359 pages |
| Export Citation | BiBTeX EndNote RefMan |