### тИ КщМЕ ОИ ВЯчСТЕР -сЩМТАНГ ЙЯИТИЙчР

дЕМ ЕМТОПъСАЛЕ ЙЯИТИЙщР СТИР СУМчХЕИР ТОПОХЕСъЕР.

### пЕЯИЕВЭЛЕМА

 еМЭТГТА 1 1 еМЭТГТА 2 4 еМЭТГТА 3 24 еМЭТГТА 4 107 еМЭТГТА 5 116 еМЭТГТА 6 157 еМЭТГТА 7 177
 еМЭТГТА 8 180 еМЭТГТА 9 181 еМЭТГТА 10 201 еМЭТГТА 11 215 еМЭТГТА 12 219 еМЭТГТА 13 225

### дГЛОЖИКч АПОСПэСЛАТА

сЕКъДА 67 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
сЕКъДА 9 - If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles are congruent.
сЕКъДА 65 - The areas of two triangles which have 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. A D A' Hyp. In triangles ABC and A'B'C', To prove AABC A A'B'C' A'B' x A'C ' Proof. Draw the altitudes BD and B'D'.
сЕКъДА 160 - ABC (fig. 224) be any spherical triangle ; produce the sides AB, AC, till they meet again in D. The arcs ABD, ACD, will be...
сЕКъДА 168 - In any spherical triangle, the greater side is opposite the greater angle ; and conversely, the greater angle is opposite the greater side.
сЕКъДА 157 - CIRCLE is a plane figure bounded by a curved line, all the points of which are equally distant from a point within called the centre; as the figure ADB E.
сЕКъДА 8 - Any side of a triangle is less than the sum of the other two sides...
сЕКъДА 82 - The perimeters of two regular polygons of the same number of sides, are to each other as their homologous sides, and their areas are to each other as the squares of those sides (Prop.
сЕКъДА 29 - Two equal chords are equally distant from the centre ; and of two unequal chords, the less is at the greater distance from the centre.
сЕКъДА 182 - CD, &c., taken together, make up the perimeter of the prism's base : hence the sum of these rectangles, or the convex surface of the prism, is equal to the perimeter of its base multiplied by its altitude.