### тИ КщМЕ ОИ ВЯчСТЕР -сЩМТАНГ ЙЯИТИЙчР

дЕМ ЕМТОПъСАЛЕ ЙЯИТИЙщР СТИР СУМчХЕИР ТОПОХЕСъЕР.

### пЕЯИЕВЭЛЕМА

 INTRODUCTION 9 RECTILINEAR FIGURES 49 BOOK II 55 THE CIRCLE RATIO INCOMMENSURABLES DOCTRINE OF LIMITS 65 EXERCISES ON BOOK II 94 BOOK III 101 BOOK IV 130
 EXERCISES ON Book IV 146 EXERCISES ON BOOK V 169 SYLLABUS OF PLANE GEOMETRY POSTULATES AxioMS 182 THE PLANE DIEDRAL ANGLES 220 EXERCISES ON BOOK VII 254 EXERCISES ON BOOK VIII 287 EXERCISES ON BOOK IX 308

### дГЛОЖИКч АПОСПэСЛАТА

сЕКъДА 131 - The area of a rectangle is equal to the product of its base and altitude.
сЕКъДА 200 - If a straight line is perpendicular to each of two straight lines at their point of intersection, it is perpendicular to the plane of those lines.
сЕКъДА 135 - Two triangles having an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles.
сЕКъДА 249 - A truncated triangular prism is equivalent to the sum of three pyramids whose common base is the base of the prism, and whose vertices are the three vertices of the inclined section.
сЕКъДА 282 - A lune is to the, surface of the sphere as the angle of the lune is to four right angles. Let...
сЕКъДА 115 - The square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of the lengths of the other two sides.
сЕКъДА 52 - The three perpendiculars from the vertices of a triangle to the opposite sides meet in the same point.
сЕКъДА 61 - A tangent to a circle is perpendicular to the radius drawn to the point of contact.
сЕКъДА 38 - The sum of the three angles of any triangle is equal to two right angles.