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12 feet 12 inches acres allowance altitude Analysis angle applied Arithmetic axle balance base boards bodies called cent circle circumference common cone contains cube cubic cubic contents curve cylinder describe difference distance divide equal estimating EXAMPLES FOR PRACTICE feet long figure find the area foot force friction frustrum gallon GEOMETRICAL given greater half Hence hexagon hight hypotenuse inches in diameter inches wide inclined inscribed length less lever machine measure mechanical powers method mile moved Multiply Note opposite parallel passes perpendicular plane polygon pounds principles Prob PROBLEM pulley pyramid radius ratio regular remainder right-angled triangle rods rope Rule schools screw side similar solidity space sphere square standard SUPERFICIES surface Table thick threads Topic triangle weight wheel whole width yards
Page 29 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, etc.
Page 13 - Pendulum vibrating Seconds of Mean Time in the Latitude of London in a Vacuum at the Level of the Sea is in the proportion of Thirty-Six Inches to Thirty-Nine Inches and one thousand three hundred and ninety-three ten-thousandth Parts of an Inch...
Page 13 - TABLE. 144 square inches (sq. in.) make 1 square foot, marked sq. ft. 9 square feet • 1 square yard,
Page 51 - The sum of two numbers, and the difference of their squares given, to find those numbers. RULE. Divide the difference of their squares by the sum of the numbers, and the quotient will be their difference.
Page 11 - Thus it is a law of the nature of water that under the mean pressure of the atmosphere at the level of the sea, it boils at 212° Fahrenheit.
Page 68 - Divide the area by . 7854 and extract the square root of the quotient.
Page 47 - To measure a parallelogram, or long square. RULE. Multiply the length by the breadth, and the product will be the area, or superficial content.
Page 23 - The lines are called the sides. The perimeter of a polygon is the sum of all its sides. The...