### тИ КщМЕ ОИ ВЯчСТЕР -сЩМТАНГ ЙЯИТИЙчР

дЕМ ЕМТОПъСАЛЕ ЙЯИТИЙщР СТИР СУМчХЕИР ТОПОХЕСъЕР.

### пЕЯИЕВЭЛЕМА

 GEOMETRY 1 BOOK V 69
 BOOK VI 89

### дГЛОЖИКч АПОСПэСЛАТА

сЕКъДА 25 - Four quantities are in proportion when the ratio of the first to the second is equal to the ratio of the third to the fourth.
сЕКъДА 30 - If any number of quantities are proportional, any antecedent is to its consequent as the sum of all the antecedents is to the sum of all the consequents. Let a : b = c : d = e :f Now ab = ab (1) and by Theorem I.
сЕКъДА 27 - If the product of two quantities is equal to the product of two others, the...
сЕКъДА 43 - The area of a regular polygon is equal to half the product of its perimeter and apothem.
сЕКъДА 11 - If two triangles have two sides, and the included angle of the one equal to two sides and the included angle of the other, each to each, the two triangles are equal in all respects.
сЕКъДА 23 - If two triangles have two sides of one respectively equal to two sides of the other, but the third sides unequal...
сЕКъДА 20 - ... polygon, is equal to twice as many right angles as the polygon has sides minus two.
сЕКъДА 49 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
сЕКъДА 70 - A right cylinder is a solid described by the revolution of a rectangle about one of its sides.
сЕКъДА 64 - DEFINITIONS. 1 . A straight line is perpendicular to a plane, when it is perpendicular to every straight line of the plane which it meets.