### тИ КщМЕ ОИ ВЯчСТЕР -сЩМТАНГ ЙЯИТИЙчР

дЕМ ЕМТОПъСАЛЕ ЙЯИТИЙщР СТИР СУМчХЕИР ТОПОХЕСъЕР.

### пЕЯИЕВЭЛЕМА

 еМЭТГТА 1 1 еМЭТГТА 2 5 еМЭТГТА 3 9 еМЭТГТА 4 74 еМЭТГТА 5 105 еМЭТГТА 6 129
 еМЭТГТА 7 147 еМЭТГТА 8 157 еМЭТГТА 9 177 еМЭТГТА 10 179 еМЭТГТА 11 187

### дГЛОЖИКч АПОСПэСЛАТА

сЕКъДА 27 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
сЕКъДА 20 - 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. D c A' D' Hyp. In triangles ABC and A'B'C', ZA = ZA'. To prove AABC = ABxAC. A A'B'C' A'B'xA'C' Proof. Draw the altitudes BD and B'D'.
сЕКъДА 51 - The area of a parallelogram is equal to the product of its base and its height: A = bx h.
сЕКъДА 15 - AXIOMS. 1. Things which are equal to the same thing are equal to one another. 2. If equals be added to equals, the wholes are equal. 3. If equals be taken from equals, the remainders are equal.
сЕКъДА 15 - LET it be granted that a straight line may be drawn from any one point to any other point.
сЕКъДА 28 - ... angles of another, the third angles will also be equal, and the two triangles will be mutually equiangular. Cor.
сЕКъДА 81 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
сЕКъДА 80 - The sine of an arc is a straight line drawn from one extremity of the arc perpendicular to the radius passing through the other extremity. The tangent of an arc is a straight line touching the arc at one extremity, and limited by the radius produced through the other extremity.
сЕКъДА 28 - After remarking that the mathematician positively knows that the sum of the three angles of a triangle is equal to two right angles...
сЕКъДА 22 - The perpendicular is the shortest line that can be drawn from a point to a straight line.