Αναζήτηση Εικόνες Χάρτες Play YouTube Ειδήσεις Gmail Drive Περισσότερα »
Είσοδος
 Βιβλία Βιβλία
Because the angle A is equal to the angle C, and the angle...
The Elements of Euclid: With Select Theorems Out of Archimedes - Σελίδα 11
των Euclid, André Tacquet - 1727 - 239 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο

## The Elements of Euclid, with many additional propositions, and explanatory ...

Euclides - 1855 - 230 σελίδες
...quadrilateral ABHG is similar and similarly situated to the quadrilateral CDEF. DEMONSTRATION. Because the angle A is equal to the angle C, and the angle ABG to CDF, therefore the remaining angle AGB is equal to the remaining angle CFD (b), wherefore the...

## The Elements of Euclid with Many Additional Propositions and Explanatory Notes

Eucleides - 1860 - 396 σελίδες
...quadrilateral ABIIG is similar and similarly situated to the quadrilateral CDEF. DEMONSTRATION. Because the angle A is equal to the angle C, and the angle ABG to CDF, therefore the remaining angle AGB is equal to the remaining angle CFD (b), wherefore the...

## The elements of geometry, in eight books; or, First step in applied logic

L J V. Gerard - 1874 - 428 σελίδες
...the opposite angles are equal to each other, is a parallelogram. Let ABCD be a quadrangle of which the angle A is equal to the angle C, and the angle B equal to the angle D. Because the angles A and B are respectively equal to the angles C and D, the...

## Elements of Euclid Adapted to Modern Methods in Geometry

Euclid, James Bryce, David Munn (F.R.S.E.) - 1874 - 236 σελίδες
...are equal. Let ABCD be a four-sided figure; it is required to prove that it is a parallelogram, 1. If the angle A is equal to the angle C, and the angle B equal to the angle i), Since all the angles of the figure taken together make four right angles (I....

## Key to Exercises in Euclid

Isaac Todhunter - 1880 - 208 σελίδες
...27. Similarly it may be shewn that AD is parallel to BC. 77. Let ABCD be a quadrilateral such that the angle A is equal to the angle C, and the angle B equal to the angle D : then the figure shall be a parallelogram. The angle A is equal to the angle...

## Elementary Geometry, Plane and Solid: For Use in High Schools and Academies

Thomas Franklin Holgate - 1901 - 462 σελίδες
...ABCD be a parallelogram It is required to prove that AB is equal to DC and AD equal to BC; also that the angle A is equal to the angle C, and the angle B equal to the angle D. Proof. Join a pair of opposite vertices A and C. Because AB is parallel to...