### Фй лЭне пй чсЮуфет -Уэнфбоз ксйфйкЮт

Ден енфпрЯубме ксйфйкЭт уфйт ухнЮиейт фпрпиеуЯет.

### Ресйечьменб

 Еньфзфб 1 1 Еньфзфб 2 4 Еньфзфб 3 107 Еньфзфб 4 215 Еньфзфб 5 219 Еньфзфб 6 225 Еньфзфб 7
 Еньфзфб 8 Еньфзфб 9 Еньфзфб 10 Еньфзфб 11 Еньфзфб 12 Еньфзфб 13 Еньфзфб 14

### ДзмпцйлЮ брпурЬумбфб

УелЯдб 67 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
УелЯдб 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.
УелЯдб 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'.
УелЯдб 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...
УелЯдб 168 - In any spherical triangle, the greater side is opposite the greater angle ; and conversely, the greater angle is opposite the greater side.
УелЯдб 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.
УелЯдб 8 - Any side of a triangle is less than the sum of the other two sides...
УелЯдб 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.
УелЯдб 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.
УелЯдб 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.