# Elements of Euclid [selections from book 1-6] adapted to modern methods in geometry, by J. Bryce and D. Munn

1874
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### Ресйечьменб

 Appendix 62 Exercises 76 Book IV 99
 Appendix 145 Exercises 151 101 178

### ДзмпцйлЮ брпурЬумбфб

УелЯдб 68 - The straight line joining the middle points of two sides of a triangle is parallel to the third side, and equal to half of it.
УелЯдб 77 - If there be two straight lines, one of which is divided into any number of parts, the rectangle contained by the two straight lines is equal to the rectangles contained by the undivided line, and the several parts of the divided line.
УелЯдб 50 - If a parallelogram and a triangle be upon the same base, and between the same parallels; the parallelogram is double of the triangle.
УелЯдб 87 - 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.
УелЯдб 30 - Any two sides of a triangle are together greater than the third side.
УелЯдб 206 - Tin; rectangle, contained by the diagonals of a quadrilateral inscribed in a circle, is equal to the sum of the rectangles contained by its opposite sides. Let ABCD be any quadrilateral inscribed in a circle...
УелЯдб 89 - To divide a given straight line into two parts, so that the rectangle contained by the whole and one of the parts, shall be equal to the square on the other part.
УелЯдб 98 - Guido, with a burnt stick in his hand, demonstrating on the smooth paving-stones of the path, that the square on the hypotenuse of a right-angled triangle is equal to the sum of the squares on the other two sides.