Solid Geometry, Τόμοι 6-9Ginn, 1902 - 218 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
Solid Geometry, Βιβλία 6-8 George Wentworth,David Eugene Smith,George Albert Wentworth Πλήρης προβολή - 1913 |
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCDE altitude angles are equal auxiliary circle bisects called centre chord circumference circumscribed coincide convex cube curve diameter dihedral angles directrix distance draw drawn ellipse equidistant equivalent face angles feet Find the volume focal radii foci frustum given plane given point Hence homologous hyperbola inches inscribed intersection lateral area lateral edges lateral faces latus rectum limit lune parabola parallel planes parallelogram pass a plane perimeter perpendicular plane MN plane parallel plane passing polyhedral angle polyhedron prismatoid Proof prove Q. E. D. PROPOSITION radius rectangular parallelopiped regular polygon regular pyramid respectively right circular cone right circular cylinder right prism right section S-ABC segment similar slant height sphere spherical angle spherical polygon spherical triangle square straight line symmetrical tangent tetrahedron THEOREM total surface triangular prism trihedral upper base vertex vertices Wentworth's
Δημοφιλή αποσπάσματα
Σελίδα 372 - Each side of a spherical triangle is less than the sum of the other two sides.
Σελίδα 274 - If two planes are perpendicular to each other, a straight line drawn in one of them perpendicular to their intersection is perpendicular to the other plane.
Σελίδα 360 - A sphere is a solid bounded by a surface all points of which are equally distant from a point within called the centre.
Σελίδα 383 - Hence the two last are right angles ; hence the arc drawn from the vertex of an isosceles spherical triangle to the middle of the base, is at right angles to the base, and bisects the vertical angle.
Σελίδα 250 - 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. To prove that Proof. A Let the triangles ABC and ADE have the common angle A. A ABC -AB X AC Now and A ADE AD X AE Draw BE.
Σελίδα 246 - PERIPHERY of a circle is its entire bounding line ; or it is a curved line, all points of which are equally distant from a point within called the centre.
Σελίδα 245 - The straight line joining the middle points of two sides of a triangle is parallel to the third side and equal to half of it 46 INTERCEPTS BY PARALLEL LINES.
Σελίδα 295 - An oblique prism is equivalent to a right prism whose base is equal to a right section of the oblique prism, and whose altitude is equal to a lateral edge of the oblique prism. r Let FI be a right section of the oblique prism AD', and PI" a right prism whose lateral edges are equal to the lateral edges of AD'.
Σελίδα 280 - The acute angle which a straight line makes with its projection upon a plane is the least angle which it makes with any line of the plane.
Σελίδα 395 - The area of a lune is to the area of the surface of the sphere as the angle of the lune is to four right angles.