Αναζήτηση Εικόνες Χάρτες Play YouTube Ειδήσεις Gmail Drive Περισσότερα »
Είσοδος
 Βιβλία Βιβλία
If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line.
The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ... - Σελίδα 24
των Euclid - 1810 - 518 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο

## Euclid for beginners, books i. and ii., with simple exercises by F.B. Harvey

Euclides, Frederick Burn Harvey - 1880 - 178 σελίδες
...right side of the figure. - Ie the double angle on the left side of the figure. PROP. XIV. THEOREM. If at a point in a straight line, two other straight lines, upon opposite sides of it, make the adjacent angles together equal to two right angles, then these two straight...

## An Elementary Geometry: Plane, Solid and Spherical

William Frothingham Bradbury - 1880 - 260 σελίδες
...therefore the sum of all the angles at the point B is equal to four right angles. THEOREM III. 47i If at a point in a straight line two other straight lines upon opposite sides of it .make the sum of tfie adjacent angles equal to two right angles, these two lines...

## First principles of Euclid: an introduction to the study of the first book ...

T S. Taylor - 1880 - 152 σελίδες
...(Euclid I. 14). Repeat. — The enunciation of Euc. I. 13 and Axioms 3<z and n. General Enunciation. If, at a point in a straight line, two other straight lines, on the opposite sides of it, make the adjacent angles together equal to two right angles, those two...

## Examination papers, and division lists, &c. [afterw.] General certificate of ...

Oxford univ, local exams - 1880 - 396 σελίδες
...superficies, a square, a parallelogram. What is Euclid's axiom about lines which will meet when produced ? 2. If at a point in a straight line two other straight lines, on the opposite sides of it, make the adjacent angles together equal to two right angles, these two...

## Moffatt's reprint of pupil teachers' questions, arranged by ed. of 'Papers ...

Moffatt and Paige - 1881 - 176 σελίδες
...trapezvum. What is the hypothesis, and what is the conclusion in the enunciation of the 5th proposition 1 2. If at a point in a straight line, two other straight...adjacent angles together equal to two right angles ; then these two straight lines shall be in one and the same straight line. 3. If two triangles have...

## The Cambridge Examiner, Τόμος 3

1883 - 536 σελίδες
...proposition, theorem, •problem, hypothesis. 3. If at a point in a straight line two other straight lines on the opposite sides of it make the adjacent angles...lines shall be in one and the same straight line. 4. ABCD is a quadrilateral, of which AD is the longest side and BC the shortest ; shew that angle ABC...

## The Elements of geometry; or, The first six books, with the eleventh and ...

Euclides - 1881 - 236 σελίδες
...Therefore BD is in the same straight line with CB. Wherefore, i£ at a point, &c. QED Corollary.— IS at a point In a straight line, two other straight lines upon the iams aide of it, make each a right angle with it, these two straight lines shall coincide with each...

## The Cambridge Examiner, Τόμος 1

1881 - 504 σελίδες
...If, at a point in a straight line, two other straight lines upon opposite sides of it make the two adjacent angles together equal to two right angles, these two straight lines must be in one and the same straight line. After proving this, define every geometrical figure you...

## The Cambridge Examiner, Τόμος 2

1882 - 498 σελίδες
...3. If two triangles have their three sides equal each to each, they are equal in every respect. 4. If at a point in a straight line two other straight lines upon opposite sides of it make the adjacent angles together equal to two right angles, then these two straight...

## The papers set at the professional preliminary examination

College of preceptors - 1882 - 528 σελίδες
...lines, parallelogram, angle in segment of a circle, rectilinear figure described about a circle. 2. If at a point in a straight line two other straight lines on the opposite sides of it m;ike the adjacent angles together equal to two right angles, these two...