Practical Geometry: With Selected Applications in Mensuration, in Artificers' Work and Mechanics

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A.S. Barnes, 1844 - Geometrical drawing - 252 pages
 

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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 triangles will be equal in all their parts.
Page 34 - The area of a triangle is equal to half the product of the base and the perpendicular...
Page 32 - The area of a rectangle is equal to the product of its base and altitude.
Page 82 - The circumferences of the sections made by the planes are called the bases of the zone, and the distance between the planes is the altitude of the zone.
Page 36 - The angles opposite the equal sides of an isosceles triangle are equal.
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. Let...
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 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, they are equal in all their parts.
Page 83 - The surface of a sphere is equal to the product of its diameter by the circumference of a great circle.

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