First Lessons in Geometry: With Practical Applications in Mensuration, and Artificers' Work and Mechanics |
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Common terms and phrases
12 feet 20 feet ABCD acres altitude axis base bounded breadth brick called centre chord circle circumference cone contain convex surface cubic feet cubic inches cylinder decimal describe diameter dimensions distance divided divisions draw drawn entire surface equal EXAMPLES Explain the manner expressed face feet 6 inches figure find the area find the solidity foot formed frustum Geometry girt given line given point gives greater half height Hence hexagon inches inscribed intersect known length less marked mean measure Mensuration of Surfaces Multiply opposite parallel parallelogram pass pentagon perpendicular plane polygon Practical Geometry prism PROBLEM pyramid quarter radius rectangle regular Required the area right angles rods Round Bodies RULE scale segment side similar slant height slide solid feet sphere square feet straight line thickness triangle unit
Popular passages
Page 35 - If two triangles have two angles and the included side of the one, equal to two angles and the included side of the other, each to each, the two triangles will be equal.
Page 20 - Every circumference of a. circle, whether the circle be large or small, is supposed to be divided into 360 equal parts called degrees. Each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.
Page 32 - 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 82 - A zone is a portion of the surface of a sphere, included between two parallel planes which form its bases.
Page 142 - From eight times the chord of half the arc, subtract the chord of the whole arc, and divide the remainder by 3, and the quotient will be the length of the arc, nearly.
Page 84 - The convex surface of a cylinder is equal to the circumference of its base multiplied by its altitude.
Page 35 - If two triangles have two sides and the included angle of the one, equal to two sides and the included angle of the other, each to each, the two triangles will be equal in all their parts." Axiom 1. "Things which are equal to the same thing, are equal to each other.
Page 41 - 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.
Page 36 - The angles opposite the equal sides of an isosceles triangle are equal.
Page 20 - For this purpose it is divided into 360 equal parts, called degrees, each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. The degrees, minutes, and seconds, are marked thus, °, ', " ; and 9° 18' 10", are read, 9 degrees, 18 minutes, and 10 seconds.
Bibliographic information
| Title | First Lessons in Geometry: With Practical Applications in Mensuration, and Artificers' Work and Mechanics |
| Author | Charles Davies |
| Publisher | A.S. Barnes, 1840 |
| Original from | Harvard University |
| Digitized | 14 Aug 2007 |
| Length | 252 pages |
| Export Citation | BiBTeX EndNote RefMan |