Elements of Geometry and Conic SectionsHarper, 1849 - 226 Seiten |
Im Buch
Ergebnisse 1-5 von 100
Seite 10
... sides of the angle . If there is only one angle at a point , it may be denoted by a letter placed at the vertex , as the angle at A. But if several angles are at one point , any one of them is expressed by three letters , of which the ...
... sides of the angle . If there is only one angle at a point , it may be denoted by a letter placed at the vertex , as the angle at A. But if several angles are at one point , any one of them is expressed by three letters , of which the ...
Seite 11
... sides . 16. A right - angled triangle is one which has a right angle . The side opposite the right an- gle is called ... sides equal , and its angles right angles . A rectangle is that which has all its angles right angles , but has not ...
... sides . 16. A right - angled triangle is one which has a right angle . The side opposite the right an- gle is called ... sides equal , and its angles right angles . A rectangle is that which has all its angles right angles , but has not ...
Seite 12
... sides , or the equal angles , are call- ed homologous sides or angles . 21. An axiom is a self - evident truth . 22. A theorem is a truth which becomes evident by a train of reasoning called a demonstration . A direct demonstration ...
... sides , or the equal angles , are call- ed homologous sides or angles . 21. An axiom is a self - evident truth . 22. A theorem is a truth which becomes evident by a train of reasoning called a demonstration . A direct demonstration ...
Seite 15
... sides of it , make the adjacent angles together equal to two right angles , these two straight lines are in one and the same straight line . At the point B , in the straight line AB , let the two straight lines BC , BD , upon the ...
... sides of it , make the adjacent angles together equal to two right angles , these two straight lines are in one and the same straight line . At the point B , in the straight line AB , let the two straight lines BC , BD , upon the ...
Seite 17
... 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 ...
... 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 ...
Andere Ausgaben - Alle anzeigen
ELEMENTS OF GEOMETRY & CONIC S Elias 1811-1889 Loomis,Making of America Project Keine Leseprobe verfügbar - 2016 |
Häufige Begriffe und Wortgruppen
75 cents ABCD AC is equal allel altitude angle ABC angle ACB angle BAC Anthon's base BCDEF bisected chord circle circumference cone contained convex surface curve described diameter dicular draw drawn ellipse equal angles equal to AC equally distant equiangular equivalent exterior angle foci four right angles frustum greater Hence Prop hyperbola inscribed intersection join latus rectum Let ABC lines AC major axis mean proportional measured by half meet Muslin number of sides ordinate parabola parallelogram parallelopiped pendicular perimeter perpen perpendicular plane MN principal vertex prism PROPOSITION pyramid radii radius ratio rectangle regular polygon right angles Prop Scholium segment Sheep extra side AC similar slant height solid angle sphere spherical triangle square subtangent tangent THEOREM triangle ABC vertex vertices
Beliebte Passagen
Seite 60 - Any two rectangles are to each other as the products of their bases by their altitudes.
Seite 27 - VIf two triangles have two angles and the included side of the one, equal to two angles and the included side of the other, each to each, the...
Seite 11 - A rhombus, is that which has all its sides equal, but its angles are not right angles.
Seite 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.
Seite 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.
Seite 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.
Seite 15 - 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.
Seite 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.
Seite 148 - I.), that every section of a sphere made by a plane is a circle.