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 Bøker Bok All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides. The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ... - Side 35
av Euclid - 1810 - 518 sider
Uten tilgangsbegrensning - Om denne boken ELEMENTS OF GEOMETRY AND TRIGONOMETRY

A. M. LEGENDRE - 1852
...triangles in the figure ; that is, as many times as there are sides, less two. But this product is equal to twice as many right angles as the figure has sides, less four right angles. Cor. 1. The sum of the interior angles in a quadrilateral, is equal to two...
Uten tilgangsbegrensning - Om denne boken The first six books of the Elements of Euclid, with numerous exercises

Euclides - 1853 - 147 sider
...(i. 15, cor. 2), together with four right angles. Therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides. Сод. 2. All the exterior angles of any rectilineal figure are together equal to four right ,ingles....
Uten tilgangsbegrensning - Om denne boken The geometry, by T. S. Davies. Conic sections, by Stephen Fenwick

...is, (2 Cor. 15. i.) together with four right angles. Therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides. COR. 2. All the exterior angles of any rectilineal figure are together equal to four right angles....
Uten tilgangsbegrensning - Om denne boken The Elements of Euclid: With Many Additional Propositions ..., Del 1

Euclid - 1853 - 136 sider
...&c., equal parts. COROLLARY 7. All the internal angles of any rectilineal figure (ABCDE), together with four right angles, are equal to twice as many right angles as the figure has sides. DEMONSTRATION. Take any point F within the figure, and draw the straight lines FA, FB, FC, FD, FE....
Uten tilgangsbegrensning - Om denne boken The synoptical Euclid; being the first four books of Euclid's Elements of ...

Euclides - 1853
...(I. 15. Cor. 2.) together with four right angles. Therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides. COK. 2. — All the exterior angles of any rectilineal figure are together equal to four right angles....
Uten tilgangsbegrensning - Om denne boken The Elements of Euclid. Books I.-VI.; XI. 1-21 XII. 1-2. A New Text ..., Bok 1

Euclides - 1853
...angles of the polygon together with four right angles. But all the angles of the polygon GHKLM together with four right angles are equal to twice as many right angles as the polygon has sides (i. 32. Cor. i), that is, as there are plane angles constituting the solid angle...
Uten tilgangsbegrensning - Om denne boken The popular educator, Volumer 5-6;Volum 8

Popular educator - 1854
...are equal to all the angles of the figure (Conit.) ; therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides (Ax. 1). QED The demonstration of Euclid's Cor. II. viz. "that all the exterior angles of any rectilineal...
Uten tilgangsbegrensning - Om denne boken Orr's Circle of the Sciences: The mathematical sciences

William Somerville Orr - 1854
...Сов. 1. — All the interior angles of any rectilineal figure, together with four right angles, are = twice as many right angles as the figure has sides. For, any rectilineal figure ABODE can be divided into as many triangles as the figure has sides, by drawing straight lines from...
Uten tilgangsbegrensning - Om denne boken Elements of Geometry and Trigonometry from the Works of A.M. Legendre ...

Charles Davies - 1854 - 432 sider
...triangles in the figure ; that is, as many times as there are sides, less two. But this product is equal to twice as many right angles as the figure has sides, less four right angles. Cor. 1. The sum of the interior angles in a quadrilateral is equal to two right...
Uten tilgangsbegrensning - Om denne boken A Manual for Practical Surveyors

E.W. Beans - 1854
...taken. If the entire survey has been made as above directed, the sum of all the internal angles will be equal to twice as many right angles as the figure has sides, diminished by four right angles. If this sum, as in practice will be likely to be the case, should...
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