Elements of Geometry and Conic SectionsHarper, 1858 - 234 sider |
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Resultat 1-5 av 24
Side 11
... vertices of two angles not adjacent to each other . Thus , AC , AD , AE are diagonals . D A E F 19. An equilateral polygon is one which has all its sides equal . An equiangular polygon is one which has all its an- gles equal . 20. Two ...
... vertices of two angles not adjacent to each other . Thus , AC , AD , AE are diagonals . D A E F 19. An equilateral polygon is one which has all its sides equal . An equiangular polygon is one which has all its an- gles equal . 20. Two ...
Side 69
... vertices B and C are in a line par- allel to the base ( Prop . II . , Cor . 2 ) . The triangles ADE , BDE , whose common vertex is E , having the same altitude , are to each other as their bases AD , DB ( Prop . VI . , B Cor . 1 ) ...
... vertices B and C are in a line par- allel to the base ( Prop . II . , Cor . 2 ) . The triangles ADE , BDE , whose common vertex is E , having the same altitude , are to each other as their bases AD , DB ( Prop . VI . , B Cor . 1 ) ...
Side 104
... vertices in G. Hence the sum of all the triangles , that is , the surface of the polygon , is equivalent to the product of the sum of the bases AB , BC , & c .; that is , the perimeter of the polygon , multiplied by half of GH , or half ...
... vertices in G. Hence the sum of all the triangles , that is , the surface of the polygon , is equivalent to the product of the sum of the bases AB , BC , & c .; that is , the perimeter of the polygon , multiplied by half of GH , or half ...
Side 127
... vertices not lying in the same face . 3. Similar polyedrons are such as have all their solid an- gles equal , each to each , and are contained by the same num- ber of similar polygons . 4. A regular polyedron is one whose solid angles ...
... vertices not lying in the same face . 3. Similar polyedrons are such as have all their solid an- gles equal , each to each , and are contained by the same num- ber of similar polygons . 4. A regular polyedron is one whose solid angles ...
Side 131
... vertices A and E draw the L planes AÏKL , EMNO perpendicular to AE , meeting the other edges of the parallelo- piped in the points I , K , L , and in M , N , O. The sections AIKL , EMNO are equal , because they are formed by planes ...
... vertices A and E draw the L planes AÏKL , EMNO perpendicular to AE , meeting the other edges of the parallelo- piped in the points I , K , L , and in M , N , O. The sections AIKL , EMNO are equal , because they are formed by planes ...
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Vanlige uttrykk og setninger
ABCD altitude angle ABC angle ACB angle BAC base bisected called chord circle circumference coincide College common cone consequently construct contained convex surface curve described diagonals diameter difference distance divided draw drawn ellipse equal equivalent extremities faces fall figure foci formed four frustum given greater half hence hyperbola included inscribed intersect join less Loomis major axis manner Mathematics mean measured meet multiplied opposite ordinate parallel parallelogram parallelopiped pass perpendicular plane plane MN polygon prism PROBLEM Professor Prop proportional PROPOSITION proved pyramid radii radius ratio reason rectangle regular represent right angles Scholium segment sides similar sphere spherical square straight line tangent THEOREM third triangle ABC vertex vertices VIII whole
Populære avsnitt
Side 60 - Any two rectangles are to each other as the products of their bases by their altitudes.
Side 17 - If two triangles have two sides, and the included angle of the one, equal to two sides and the included angle of the other, each to each, the two triangles will be equal, their third sides will be equal, and their other angles will be equal, each to each.
Side 101 - When you have proved that the three angles of every triangle are equal to two right angles...
Side 63 - IF a straight line be divided into any two parts, the square of the whole line is equal to the squares of the two parts, together with twice the' rectangle contained by the parts.
Side 18 - BC common to the two triangles, which is adjacent to their equal angles ; therefore their other sides shall be equal, each to each, and the third angle of the one to the third angle of the other, (26.
Side 10 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Side 32 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Side 37 - Proportional, when the ratio of the first to the second is equal to the ratio of the second to the third.
Side 15 - Wherefore, when a straight line, &c. QED PROP. XIV. THEOR. If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line.
Side 44 - 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.