### Περιεχόμενα

 Ενότητα 1 1 Ενότητα 2 4
 Ενότητα 3 5 Ενότητα 4 62

### Δημοφιλή αποσπάσματα

Σελίδα 10 - If two triangles have two sides of the one equal to two sides of the...
Σελίδα 39 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Σελίδα 5 - 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.
Σελίδα 40 - ... figure, together with four right angles, are equal to twice as many right angles as the figure has be divided into as many triangles as the figure has sides, by drawing straight lines from a point F within the figure to each of its angles.
Σελίδα 79 - THE rectangle contained by the diagonals of a quadrilateral inscribed in a circle, is equal to both the rectangles contained by its opposite sides.* Let ABCD be any quadrilateral inscribed in a circle, and join AC, BD ; the.
Σελίδα 74 - Any two sides of a triangle are together greater than the third side.
Σελίδα 47 - In every triangle, the square on the side subtending either of the acute angles, is less than the squares on the sides containing that angle, by twice the rectangle contained by either of these sides, and the straight line intercepted between the...
Σελίδα 53 - ... figures are to one another in the duplicate ratio of their homologous sides.
Σελίδα 62 - ... in a segment less than a semicircle, is greater than a right angle...
Σελίδα 59 - The angles in the same segment of a circle are equal to one another.