Treatise on Plane and Solid Geometry: For Colleges, Schools, and Private Students

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Wilson, Hinkle & Company, 1873 - 276 pàgines
 

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Pàgina 98 - If two triangles have two sides of the one respectively equal to two sides of the other, and the included angles unequal, the triangle which has the greater included angle has the greater third side.
Pàgina 52 - A circle is a plane figure bounded by a curved line, every point of which is equally distant from a point within called the center.
Pàgina 182 - ... the plane at equal distances from the foot of the perpendicular, are equal...
Pàgina 141 - The square described on the hypothenuse of a right-angled triangle is equivalent to the sum of the squares described on the other two sides.
Pàgina 124 - If the opposite sides of a quadrilateral are equal, the figure is a parallelogram.
Pàgina 238 - Corollary. — The volume of any pyramid is equal to one-third of the product of its base by its altitude. For any pyramid...
Pàgina 173 - The areas of two circles are to each other as the squares of their radii ; or, as the squares of their diameters. 502. Corollary — When the radius is unity, the area is expressed by ;r. 503. Theorem — The area of a sector is measured by half the product of its arc by its radius.
Pàgina 214 - The height of a cone is the perpendicular distance from the vertex to the plane of the base.
Pàgina 233 - COR. 2. The volume of a rectangular parallelopiped is equal to the product of its base by its altitude.
Pàgina 57 - Problem. — To draw a line through a given point parallel to a given line. Let a perpendicular fall from the point on the line.

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