### Фй лЭне пй чсЮуфет -Уэнфбоз ксйфйкЮт

Ден енфпрЯубме ксйфйкЭт уфйт ухнЮиейт фпрпиеуЯет.

### ДзмпцйлЮ брпурЬумбфб

УелЯдб 39 - To draw a straight line perpendicular to a given straight line of an unlimited length, from a given point without it. Let AB be the given straight line, which may be produced to any length both ways, and let c be a point without it.
УелЯдб 27 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
УелЯдб 62 - Multiply the sum of the parallel sides by the perpendicular distance between them, and half the product will be the area.
УелЯдб 56 - To measure a Parallelogram, or long square. RULE. Multiply the length by the breadth, and the product will be the area or superficial content.
УелЯдб 65 - TO FIND THE AREA OF A CIRCLE. Rule. — Multiply the square of the diameter by .7854 and the product will be the area.
УелЯдб xv - Separate the given number into periods of two figures each, beginning at the right hand: the period on the left will often contain but one figure.
УелЯдб 40 - To bisect a given finite straight line, that is, to divide it into two equal parts. Let AB be the given straight line : it is required to divide it intotwo equal parts.
УелЯдб 37 - At a given point in a given straight line, to erect a perpendicular to that line. Let AB be the given line and C the given point.
УелЯдб iii - EULE.—Divide as in whole numbers, and point off as many decimal places in the quotient as the number of decimal places in the dividend exceeds the number in the divisor.
УелЯдб 32 - A cylinder is conceived to be generated by the revolution of a rectangle about one of its sides as an axis.