Elements of Solid GeometrySouthern Publishing Company, 1912 - 110 páginas |
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Términos y frases comunes
AB'C ABC and A'B'C ABCDE altitude H angles are equal bisecting central angles circle common altitude cone congruent or symmetrical conical surface cube cylinder diagonal diameter dihedral angles dimensions divided draw equal altitudes equal spheres equidistant face angles Find the volume frustum given plane given point homologous lateral area lateral edges lateral faces Let the number limit lower base mutually equiangular oblique parallel planes pass a plane perimeter plane angle plane MN plane parallel plane perpendicular pole polyhe polyhedral angle prism is equal radii ratio rectangular parallelopiped regular polygons regular polyhedrons regular pyramid respectively right prism right section slant height sphere whose radius spherical angle spherical excess spherical polygon spherical triangle squares straight line tangent tetrahedrons THEOREM three faces triangles are congruent triangular prism triangular pyramid trihedral truncated upper base vertices zone
Pasajes populares
Página 4 - Equal oblique lines from a point to a plane meet the plane at equal distances from the foot of the perpendicular ; and of two unequal oblique lines the greater meets the plane at the greater distance from the foot of the perpendicular.
Página 98 - The area of the surface generated by a straight line revolving about an axis in its plane is equal to the product of the projection of the line on the axis by the circumference whose radius is a perpendicular erected at the middle point of the line and terminated by the axis.
Página 58 - A truncated triangular prism is equivalent to the sum of three pyramids whose common base is the base of the prism, and whose vertices are the three vertices of the inclined section.
Página 37 - An oblique prism is equivalent to a right prism whose base is a right section of the oblique prism, and whose altitude is equal to a lateral edge of the oblique prism. Hyp. OM is a right section of oblique prism AD', and OM ' a right prism whose altitude is equal to a lateral edge of AD'. To prove AD' =0= GM' . Proof. The lateral edges of GM
Página xi - Two triangles, which have an angle in the one equal to an angle in the other, are to each other as the rectangles of the sides Fig.
Página ix - Two triangles are congruent if two sides and the included angle of one are equal respectively to two sides and the included angle of the other.
Página 4 - ... of two oblique lines meeting the plane at unequal distances from the foot of the perpendicular the more remote is the greater.
Página viii - Two right triangles are equal if the hypotenuse and an acute angle of the one are equal respectively to the hypotenuse and an acute angle of the other.
Página 59 - Assuming that the areas of two triangles which have an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles...
Página 35 - The lateral area of a prism is equal to the product of the perimeter of a right section of the prism by a lateral edge. Let AD...