### Фй лЭне пй чсЮуфет -Уэнфбоз ксйфйкЮт

Ден енфпрЯубме ксйфйкЭт уфйт ухнЮиейт фпрпиеуЯет.

### Ресйечьменб

 Abbreviations list of 29 8 PRELIMINARY DEFINITIONS 9 Adjacent angles 15 ADDITIONAL EXERCISES 71 Equiangular polygon 152 76 inscribed 354 79 Equilateral polygon 152 96 Equivalent polygons 561 113
 Hexagon 152 168 ADDITIONAL EXERCISES 173 Hypotenuse 43 178 ADDITIONAL EXERCISES 213 Polygon 152 220 Interior angles 113 227 Arc 21 230 Axioms list of 27 240

### 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 163 - If two chords intersect within a circle, the product of the segments of one is equal to the product of the segments of the other.
УелЯдб 129 - To express that the ratio of A to B is equal to the ratio of C to D, we write the quantities thus : A : B : : C : D ; and read, A is to B as C to D.
УелЯдб 120 - If a quadrilateral is circumscribed about a circle, the sum of one pair of opposite sides is equal to the sum of the other pair.
УелЯдб 72 - The lines joining the middle points of the opposite sides of a quadrilateral bisect each other.
УелЯдб 203 - In any obtuse triangle, the square of the side opposite the obtuse angle is equal to the sum of the squares of the other two sides, increased by twice the product of one of these sides and the projection of the other side upon it.
УелЯдб 15 - If two triangles have two sides and the included angle of one equal respectively to two sides and the included angle of the other, the triangles are equal.
УелЯдб 221 - Tangents to a circle at the middle points of the arcs subtended by the sides of a regular inscribed polygon...
УелЯдб 11 - PERIPHERY of a circle is its entire bounding line ; or it is a curved line, all points of which are equally distant from a point within called the center.
УелЯдб 61 - If the diagonals of a quadrilateral bisect each other, the figure is a parallelogram.