Elements of Geometry and Conic SectionsHarper, 1849 - 226 sider |
Inni boken
Resultat 1-5 av 36
Side 9
... called points . A point , there- fore , has position , but not magnitude , 3. A straight line is the shortest path from one point to another . 4. Every line which is neither a straight line , nor compo- sed of straight lines , is a ...
... called points . A point , there- fore , has position , but not magnitude , 3. A straight line is the shortest path from one point to another . 4. Every line which is neither a straight line , nor compo- sed of straight lines , is a ...
Side 10
Elias Loomis. tion , or opening , is called an angle . The point of meeting is called the vertex , and the lines are called the sides of the angle . If there is only one angle at a point , it may be denoted by a letter placed at the ...
Elias Loomis. tion , or opening , is called an angle . The point of meeting is called the vertex , and the lines are called the sides of the angle . If there is only one angle at a point , it may be denoted by a letter placed at the ...
Side 11
... called the hypothenuse . An obtuse - angled triangle is one which has an obtuse an- gle . An acute - angled triangle is one which has three acute angles . 17. Of quadrilaterals , a square is that which has all its sides equal , and its ...
... called the hypothenuse . An obtuse - angled triangle is one which has an obtuse an- gle . An acute - angled triangle is one which has three acute angles . 17. Of quadrilaterals , a square is that which has all its sides equal , and its ...
Side 12
... called a demonstration . A direct demonstration proceeds from the premises by a regular deduction . An indirect demonstration shows that any supposition con- trary to the truth advanced , necessarily leads to an absurd- ity . 23. A ...
... called a demonstration . A direct demonstration proceeds from the premises by a regular deduction . An indirect demonstration shows that any supposition con- trary to the truth advanced , necessarily leads to an absurd- ity . 23. A ...
Side 13
... called plus , and indicates addition ; thus , A + B represents the sum of the quantities A and B. - The sign is called minus , and indicates subtraction ; thus , A - B represents what remains after subtracting B from A. The sign x ...
... called plus , and indicates addition ; thus , A + B represents the sum of the quantities A and B. - The sign is called minus , and indicates subtraction ; thus , A - B represents what remains after subtracting B from A. The sign x ...
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ELEMENTS OF GEOMETRY & CONIC S Elias 1811-1889 Loomis,Making of America Project Ingen forhåndsvisning tilgjengelig - 2016 |
Vanlige uttrykk og setninger
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
Populære avsnitt
Side 60 - Any two rectangles are to each other as the products of their bases by their altitudes.
Side 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...
Side 11 - A rhombus, is that which has all its sides equal, but its angles are not 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 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.
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.
Side 148 - I.), that every section of a sphere made by a plane is a circle.