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12 feet 9 inches acres add the square breadth bung diameter cask centre chord circle circular segment circum circumference cone cube root cumference cylinder cyphers depth divisor ellipsis equal in area example Extend the compasses extent will reach feet 6 inches feet 9 figure find the area find the Solidity foot frustum given gives greater base greater end half the arch half the sum head diameter hence Jins Jēns length less base less end Let ABCD measure parabolic parallel parallelogram perpendicular height polygon prism pyramid quotient radius regular polygons Required the area Required the solidity resolvend rhombus right angled Scale and Compasses segment side slant height Sliding Rule solid angles solid content solid feet solidity and superficies sphere spheroid square equal square inscribed square pyramid square root subtract superficial content surface third trapezium triangle vulgar fraction whole numbers wine gallons yards
Page 59 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Page 80 - To find the area of a parallelogram (65), whether it be a square, a rectangle, a rhombus, or a rhomboid. RULE. — Multiply the length by the breadth, or perpendicular height, and the product will be the area.
Page 242 - Windows are sometimes measured by taking the dimensions of one pane, and multiplying its superficies by the number of panes.' But, more generally, they measure the length and breadth of the window over all the panes and their frames for the length and breadth of the glazing. Circular or oval windows, as fan lights...
Page 41 - ... 2. Multiply each term in the multiplicand, beginning at the lowest, by the feet in the multiplier, and write...
Page 101 - Or, to take a case yet stronger, when it is affirmed, that " the area of a circle is equal to that of a triangle having the circumference for its base, and the radius for its altitude...
Page 165 - RULE. To twice the length of the base, add the length of the edge, multiply the sum by the breadth of the base, and this product by the perpendicular height of the wedge ; and | of the last product will be the solidity.
Page 89 - To the square of the base add the square of the perpendicular ; and the square root of the sum will give the hypothenuse (Prop.
Page 103 - As 7 is to 22, so is the diameter to the circumference; or, as 22 is to 7, so is the circumference to the diameter.