Elements of Drawing and Mensuration Applied to the Mechanic Arts: A Book for the Instruction and Use of Practical Men

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Barnes, 1846 - Geometrical drawing - 240 pages
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Page 17 - Each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.
Page 111 - The area of a rectangle is equal to the product of its base and altitude. Given R a rectangle with base b and altitude a. To prove R = a X b. Proof. Let U be the unit of surface. .R axb U' Then 1x1 But - is the area of R.
Page 170 - A zone is a portion of the surface of a sphere, included between two parallel planes which form its bases.
Page 149 - Multiply the area of the base by the altitude, and the product will be the solidity. 1. What is the solidity of a cylinder 8 feet in length and 2 feet in diameter?
Page 172 - The surface of a sphere is equal to the product of its diameter by the circumference of a great circle.
Page 225 - An equilibrium is produced in all the levers, when the weight multiplied by its distance from the fulcrum is equal to the product of the power multiplied by its distance from the fulcrum. That...
Page 111 - The area of a triangle is equal to half the product of the base and height.
Page 23 - The square described on the hypothenuse of a rightangled triangle is equal to the sum of the squares described on the other two sides.
Page 240 - As the tabular specific gravity of the body, Is to its weight in avoirdupois ounces, So is one cubic foot^ or 1728 cubic inches, To its content in feet, or inches, respectively.
Page 125 - Similar figures, are those that have all the angles of the one equal to all the angles of the other, each to each, and the sides about the equal angles proportional.

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