Elements of Plane and Solid GeometryGinn and Heath, 1877 - 398 σελίδες |
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Σελίδα viii
... SURFACE OF THE SPHERE SPHERICAL ANGLES . SPHERICAL POLYGONS AND PYRAMIDS . COMPARISON AND MEASUREMENT OF SPHERICAL SURFACES VOLUME OF THE SPHERE · 251 268 275 277 . 286 302 317 322 326 328 339 349 356 · 363 365 383 396 ELEMENTS OF ...
... SURFACE OF THE SPHERE SPHERICAL ANGLES . SPHERICAL POLYGONS AND PYRAMIDS . COMPARISON AND MEASUREMENT OF SPHERICAL SURFACES VOLUME OF THE SPHERE · 251 268 275 277 . 286 302 317 322 326 328 339 349 356 · 363 365 383 396 ELEMENTS OF ...
Σελίδα 3
... surfaces be made smooth by pol- ishing , so that , when a straight - edge is applied to any one of them , the straight - edge in every part will touch the surface , the surfaces are called Plane Surfaces . The sharp edge in which any ...
... surfaces be made smooth by pol- ishing , so that , when a straight - edge is applied to any one of them , the straight - edge in every part will touch the surface , the surfaces are called Plane Surfaces . The sharp edge in which any ...
Σελίδα 4
... surface in motion . B A F E H K Thus , in the diagram , let the upright surface ABCD move to the right to the position EFHK . The points A , B , C , and D will generate the lines AE , BF , CK , and D H respectively . And the lines AB ...
... surface in motion . B A F E H K Thus , in the diagram , let the upright surface ABCD move to the right to the position EFHK . The points A , B , C , and D will generate the lines AE , BF , CK , and D H respectively . And the lines AB ...
Σελίδα 5
... Surface , or a Plane , is a surface in which , if any two points be taken , the straight line joining these points will lie wholly in the surface . 12. DEF . A Curved Surface is a surface no part of which is plane . 13. Figure or form ...
... Surface , or a Plane , is a surface in which , if any two points be taken , the straight line joining these points will lie wholly in the surface . 12. DEF . A Curved Surface is a surface no part of which is plane . 13. Figure or form ...
Σελίδα 6
... surfaces , and solids , with their relations , are the geometrical conceptions , and constitute the subject - matter of Geometry . 16. Plane Geometry treats of plane figures . Plane figures are either rectilinear , curvilinear , or ...
... surfaces , and solids , with their relations , are the geometrical conceptions , and constitute the subject - matter of Geometry . 16. Plane Geometry treats of plane figures . Plane figures are either rectilinear , curvilinear , or ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
AABC ABCD altitude arc A B axis base and altitude bisect centre circle circumference circumscribed coincide conical surface COROLLARY cylinder denote diagonals diameter dihedral angle distance divided Draw equal respectively equally distant equilateral equivalent figure frustum Geometry given point greater Hence homologous sides hypotenuse intersection isosceles lateral area lateral edges lateral faces Let A B Let ABC limit line A B measured by arc middle point mutually equiangular number of sides opposite parallel parallelogram parallelopiped perimeter perpendicular plane MN prism prove pyramid Q. E. D. PROPOSITION radii radius equal ratio rectangles regular polygon right angles right triangle SCHOLIUM segment sides of equal similar polygons slant height sphere spherical angle spherical polygon spherical triangle square subtend surface symmetrical tangent tetrahedron THEOREM third side trihedral vertex vertices volume
Δημοφιλή αποσπάσματα
Σελίδα 132 - To describe an isosceles triangle having each of the angles at the base double of the third angle.
Σελίδα 140 - In a series of equal ratios, the sum of the antecedents is to the sum of the consequents as any antecedent is to its consequent.
Σελίδα 206 - In any proportion, the product of the means is equal to the product of the extremes.
Σελίδα 40 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Σελίδα 353 - A sphere is a solid bounded by a surface all points of which are equally distant from a point within called the centre.
Σελίδα 179 - Any two rectangles are to each other as the products of their bases by their altitudes.
Σελίδα 192 - In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides diminished by twice the product of one of those sides and the projection of the other upon that side.
Σελίδα 150 - 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. A D A' Hyp. In triangles ABC and A'B'C', To prove AABC A A'B'C' A'B' x A'C ' Proof. Draw the altitudes BD and B'D'.