Suche Bilder Maps Play YouTube News Gmail Drive Mehr »
Anmelden
 Books Bücher
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.
A text-book of engineering drawing and design - Seite 22
von Sidney Herbert Wells - 1905
Vollansicht - Über dieses Buch

## The Young Surveyor's Guide: Or, A New Introduction to the Whole Art of ...

Edward Laurence - 1716 - 408 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...
Vollansicht - Über dieses Buch

## The Young Gentleman's Arithmetick, and Geometry: Containing Such Elements of ...

Edward Wells - 1723 - 358 Seiten
...the Sum of all the Angles in all the Tri~ angles, into which the Figure is divided, will together be equal to twice as ma-ny right Angles, as the Figure has Sides. But the Angles about P, the inward Point of each Figure, wherein all the Triangles concur, are (by...
Vollansicht - Über dieses Buch

## The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - 1762 - 488 Seiten
...angles. wherefore if a fide of a triangle &c. Q^ED CoR. i . 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 fides. For any recHlineal figure ABCDE can be divided into as many triangles as the figure has fides...
Vollansicht - Über dieses Buch

## Euclid's Elements of Geometry: The First Six, the Eleventh and Twelfth Books

Euclid - 1765 - 492 Seiten
...(for every whole ig equal to all its parts taken together) therefore .all the angles of a right-lined figure, together with four right angles, are equal to twice as many right angles as the figure has fides. And taking away four right angles from each, there will remain all the angles of the figure...
Vollansicht - Über dieses Buch

## A Royal Road to Geometry: Or, an Easy and Familiar Introduction to the ...

Thomas Malton - 1774 - 484 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. 2. of...
Vollansicht - Über dieses Buch

## The Elements of Euclid, Viz: The Errors, by which Theon, Or Others, Have ...

Robert Simson - 1775 - 534 Seiten
...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 fides. CoR. 2. All the exterior angles of any re&ilineal figure, are together equal to four right angles....
Vollansicht - Über dieses Buch

## The First Six Books: Together with the Eleventh and Twelfth

Euclid - 1781 - 552 Seiten
...vertex of the triangles; that isa, together with four right angles. Thprefpre all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has fides. CoR. 2. All the exterior angles of any rectilineal figure, arc together equal to four right...
Vollansicht - Über dieses Buch

## A Complete Treatise on Practical Mathematics: Including the Nature and Use ...

John McGregor (teacher of mathematics.) - 1792 - 532 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 to 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 ...

Euclid, John Playfair - 1795 - 462 Seiten
...vertex of the triangles : that is a, together witi four right angles. Therefore all the angles of the figure, together 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...
Vollansicht - Über dieses Buch

## The Elements of Euclid: Viz. the First Six Books, with the Eleventh and ...

Alexander Ingram - 1799 - 374 Seiten
...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 fides. COR. 2. All the exterior angles of any reftilineal figure, are together equal to four right...
Vollansicht - Über dieses Buch