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 Books Bücher 1 - 10 von 180 in F, which is the common vertex of the triangles ; that is, together with four right... F, which is the common vertex of the triangles ; that is, 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. The Elements of Euclid: Viz. the First Six Books, with the Eleventh and ... - Seite 35
von Alexander Ingram - 1799 - 351 Seiten
Vollansicht - Über dieses Buch The Young Surveyor's Guide: Or, A New Introduction to the Whole Art of ...

Edward Laurence - 1716 - 375 Seiten
...external < a, is equal to t wo right Angles (by tbe^tb /)confequently all the internal and external Angles are equal to twice as many right Angles as the Figure has fides. But all its internal Angles are equal to twiee as many right Angles eicept 4 as it has fides (by the...
Vollansicht - Über dieses Buch The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - 1762 - 466 Seiten
...at the «. t (,„,. point F which is the common Vertex of the triangles ; that is ", toM. i. gether with four right angles. Therefore all the angles of...twice as many right angles as the figure has fides. C o R. 2 . All the exterior angles of any rectilineal figure are together equal to four right angles....
Vollansicht - Über dieses Buch Euclid's Elements of Geometry: The First Six, the Eleventh and Twelfth Books

Euclid - 1765 - 464 Seiten
...fpoken of, is equal to two right angles, all the angles of tiie figure, together with thefe outward angles, are equal to twice as many right angles as the figure has angles, that is, has fides. But fince all the inward angles together, with four right angles, has been...
Vollansicht - Über dieses Buch A Royal Road to Geometry: Or, an Easy and Familiar Introduction to the ...

Thomas Malton - 1774 - 440 Seiten
...by the Sides. ie equal to four Right Angles. And, all the internal Angles of any Right-lined Figure are equal to twice as many Right Angles as the Figure has Sides, wanting four, (Th. i. i0. i.) confequently, the external Angles being equal to thofe four (Th....
Vollansicht - Über dieses Buch The Elements of Euclid, Viz: The Errors, by which Theon, Or Others, Have ...

Robert Simson - 1775 - 520 Seiten
...a triangle, &c. Q;.ED CoR. i. All the interior angles of any re&ilineal figure, together with foiir right angles, are equal to twice as many right angles as the figure has fides. For any re&ilineal figure ABCDE can be divided into as many triangles as the figure has fides, by drawing...
Vollansicht - Über dieses Buch The First Six Books: Together with the Eleventh and Twelfth

Euclid - 1781 - 520 Seiten
...F, which is the common vertex of the triangles; that isa, together with four right angles. Thprefpre all the angles of the figure, together with four right...has fides. CoR. 2. All the exterior angles of any rectilineal figure, arc together equal to four right angle*. Becaufe every interior angle ABC, with...
Vollansicht - Über dieses Buch The Elements of Euclid

Euclid, Robert Simson - 1781 - 466 Seiten
...with the angles at aa Cor. the point F which is the common Vertex of the triangles ; that is*, *s ', together with four right angles. Therefore all the...twice as many right angles as the figure has fides. Cou. 2. All the exterior angles of any rectilineal figure are together equal to four right angles....
Vollansicht - Über dieses Buch A Treatise on Mensuration, Both in Theory and Practice

Charles Hutton - 1788 - 703 Seiten
...work ; add all the inward angles A, B, c, &c, together, and when the work is right, their fum will be equal to twice as many right angles as the figure has fides, wanting 4 right angles. And when there is an angle, as F, that bends inwards, and you meafure the external...
Vollansicht - Über dieses Buch A Complete Treatise on Practical Mathematics: Including the Nature and Use ...

John McGregor (teacher of mathematics.) - 1792 - 431 Seiten
...angles of any regular polygon* 3By cor. i ft, I. 32. Euclid. All the anterior angles of any reoilineal figure, together with four right angles, are equal...twice as many right angles as the figure has fides. Hence the following rule. RULÉ. From double thé number of fides f übt vail: 4, and the remainder...
Vollansicht - Über dieses Buch Elements of Geometry;: Containing the First Six Books of Euclid, with Two ...

John Playfair - 1795 - 400 Seiten
...with the angles at the point F, which B the common vertex of the triangles : that is a, together witi four right angles. Therefore all the angles of the...with four right angles, are equal to twice as many rigit angles as the fi rurehas fides. CoR. 2. All the exterior angles of any reftilineal figure an...
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