# The Elements of Euclid for the Use of Schools and Colleges: Comprising the First Six Books and Portions of the Eleventh and Twelfth Books : with Notes, an Appendix, and Exercises

Macmillan, 1883 - 400 σεκΏδερ
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### –εώιεςϋλεμα

 I 173 Book XI 220 Book XII 244
 Notes on Euclids Elements 250 Appendix 292 Exercises in Euclid 340

### Ργλοωικό αποσπήσλατα

”εκΏδα 264 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
”εκΏδα 73 - 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.
”εκΏδα 264 - To draw a straight line at right angles to a given straight line, from a given point in the same. Let AB be...
”εκΏδα 184 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
”εκΏδα 10 - THE angles at the base of an isosceles triangle are equal to one another : and, if the equal sides be produced, the angles upon the other side of the base shall be equal.
”εκΏδα 300 - Describe a circle which shall pass through a given point and touch a given straight line and a given circle.
”εκΏδα 60 - If a straight line be divided into any two parts, four times the rectangle contained by the whole line, and one of the parts, together with the square of the other part, is equal to the square of the straight line which is made up of the whole and that part.
”εκΏδα 62 - If a straight line be divided into two equal, and also into two unequal parts, the squares on the two unequal parts are together double of the square on half the line, and of the square on the line between the points of section. Let the straight line AB be divided into two equal parts in the point C, and into two unequal parts in the point D ; The squares on AD and DB shall be together double of ADΜ+DB
”εκΏδα 244 - Let AB and C be two unequal magnitudes, of which AB is the greater. If from AB there be taken more than its half, and from the remainder more than its half, and so on ; there shall at length remain a magnitude less than C. For C may be multiplied, so at length to become greater than AB.
”εκΏδα 6 - Magnitudes which coincide with one another, that is, which exactly fill the same space, are equal to one another.