Αναζήτηση Εικόνες Χάρτες Play YouTube Ειδήσεις Gmail Drive Περισσότερα »
Είσοδος
 Βιβλία Βιβλία
When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle; and the straight line which stands on the other is called a perpendicular to it.
Euclid, books i. & ii., with notes, examples, and explanations, by a late ... - Σελίδα 1
των Euclides - 1879
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο

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

Robert Simson - 1806 - 518 σελίδες
...line standing on another straight lii>e makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight...stands on the other is called a perpendicular to it. XI. An obtuse angle is that which is greater than a right angle. XII. An acute angle is that which...

## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - 1806 - 311 σελίδες
...line standing on another straight line makes the adjacent angles equal to .one another, each of the angles is called a right angle ; and the straight...stands on the other is called a perpendicular to it. _____ VIII, Book I. An obtuse angle is that which is greater than a right angle. IX. An acute angle...

## Pantologia. A new (cabinet) cyclopædia, by J.M. Good, O. Gregory ..., Τόμος 5

John Mason Good - 1813
...line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle; and the straight line...other is called a perpendicular to it. 11. An obtuse an¿le is that which is greater 'than a right angle. IS. An acnte angle is that which is less than...

## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - 1819 - 333 σελίδες
...line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight...stands on the other is called a perpendicular to it. VIII. An obtuse angle is that which is greater than a right angle. An acute angle is that which is...

## Pantologia. A new (cabinet) cyclopædia, by J.M. Good, O. Gregory ..., Τόμος 5

John Mason Good - 1819
...adjacent angles equal to one another, each of (lie angles is called и right angle; and the ira glu line which stands on the other is called a perpendicular to it. 11. An obtuse angle is that which is g cater than a right an^le. 12. Ли acute angle is that which ¡s less than a ri^ht angle. 13. " A...

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

Euclid, Robert Simson - 1821 - 516 σελίδες
...line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle: and the straight line...which stands on the other is called a perpendicular to „« —__ it. XI. An obtuse angle is that which is greater than a right angle. XII. An acute angle...

## A Popular Course of Pure and Mixed Mathematics ...: With Tables of ...

Peter Nicholson - 1825 - 372 σελίδες
...line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight...angle is that which is greater than a right angle. ^ 12. An acute angle is that which is less than a right angle. 13. " A term or boundary is the extremity...

## Elements of Arithmetic, Algebra, and Geometry

George Lees - 1826
...on another straight line CD, makes the adjacent angles ABC and ABD equal to one another, each of the angles is called a right angle, and the straight line,...stands on the other, is called a perpendicular to it. •D OF GEOMETRY. with another CD, upon one side of it, are eitlier two right angles, or are, together,...

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

Robert Simson - 1827 - 513 σελίδες
...line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle; and the straight line...stands on the other is called a perpendicular to it. XL An obtuse angle is that which is greater than a right angle. XII. An acute angle is that which is...

## Elements of Geometry: Being Chiefly a Selection from Playfair's Geometry

John Playfair - 1829 - 186 σελίδες
...straight line standing on another straight line makes the adjacent angles equal to each other, each of the angles is called a right angle; and the straight line...stands on the other is called a perpendicular to it. Otherwise. When a straight line standing on another straight line does not incline to either side of...