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An introduction to mensuration and practical geometry
John Bonnycastle,James Ryan
Visualització completa - 1853
9 inches ABCD abscissa ADBA altitude Avoirdupois base Bisect breadth cask centre chord of half circumference cone conjugate diameter convex surface cube root cubic inches curve cylinder decimal Demon describe the arc diagonal distance divided draw the line ellipse equal EXAMPLES feet 6 inches feet 9 figure find the area find the solidity fluxion foot fraction frustrum girth give the solidity given line greater end half the arc head diameter horse power hyperbola length less end linear side measure minute ordinate parabola parallel pentagon plane polygon PROBLEM proportion pyramid quotient radius regular polygon Required the area Required the solidity revolutions per minute right angled right line segment sine of half slant height SLIDING RULE solid content specific gravity sphere spheroid square feet square root thickness transverse diameter trapezium triangle ullage velocity versed sine water wheel wheel wine gallons yard
Pàgina 48 - The areas of circles are to each other as the squares of their diameters.
Pàgina 18 - In a right-angled triangle, the side opposite to the right angle, is called the hypothenuse ; and the other two sides are called the legs, and sometimes the base and perpendicular : thus, A, B is the base, B, C perpendicular, and A, C hypothenuse.
Pàgina 123 - To find the solidity of a cylinder. RULE. — Multiply the area of the base by the altitude, and the product will be the solidity.
Pàgina 190 - ... foot ; there being three stories, and three windows in each story. The height of the lower tier is 7 feet 9 inches, of the middle 6 6 of the upper 5 3| and of an oval window over the door 1 105 the common breadth of all the windows being 3 feet 9 inches. Ans. £12, Is. 8|d. PAVERS' WORK — Pavers- work is done by the square yard.
Pàgina 19 - 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.
Pàgina 258 - MECHANICAL POWERS are certain simple instruments employed in raising greater weights, or overcoming greater resistance than could be effected by the direct application of natural strength. They are usually accounted six in number; viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw.
Pàgina 94 - As the conjugate diameter is to the transverse, So is the square root of the difference of the squares of the ordinate and semi-conjugate, To the distance between the ordinate and centre.
Pàgina 13 - The radius of a circle is a right line drawn from the centre to the circumference.