### Фй лЭне пй чсЮуфет -Уэнфбоз ксйфйкЮт

Ден енфпрЯубме ксйфйкЭт уфйт ухнЮиейт фпрпиеуЯет.

### ДзмпцйлЮ брпурЬумбфб

УелЯдб 80 - Similar triangles are to each other as the squares of their homologous sides.
УелЯдб 101 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
УелЯдб 69 - In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides diminished by twice the product of one of those sides and the projection of the other upon that side.
УелЯдб 79 - If four quantities are in proportion, they are in proportion by composition, ie the sum of the first two terms is to the second term as the sum of the last two terms is to the fourth term.
УелЯдб 93 - 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 101 - The logarithm of a number is the exponent of the power to which it is necessary to raise a fixed number, in order to produce the first number.
УелЯдб 74 - The bisector of an angle of a triangle divides the opposite side into segments which are proportional to the adjacent sides.
УелЯдб 101 - The logarithm of a product is equal to the sum of the logarithms of its factors.
УелЯдб 68 - Prove that, if from a point without a circle a secant and a tangent be drawn, the tangent is a mean proportional between the whole secant and the part without the circle.
УелЯдб 74 - After remarking that the mathematician positively knows that the sum of the three angles of a triangle is equal to two right angles...