Elements of Geometry: And the First Principles of Modern GeometrySheldon & Company, 1878 - 209 páginas |
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Página
... POSITION OF CIRCLES INSCRIBED AND CIRCUMSCRIBED POLYGONS 48 50 PROBLEMS . 52 . BOOK III . RATIO AND PROPORTION AREAS · PROPORTIONAL LINES SIMILAR POLYGONS TRANSVERSALS LINES ON THE CIRCLE PROBLEMS CERR 63 67 79 83 90 93 97 BOOK IV ...
... POSITION OF CIRCLES INSCRIBED AND CIRCUMSCRIBED POLYGONS 48 50 PROBLEMS . 52 . BOOK III . RATIO AND PROPORTION AREAS · PROPORTIONAL LINES SIMILAR POLYGONS TRANSVERSALS LINES ON THE CIRCLE PROBLEMS CERR 63 67 79 83 90 93 97 BOOK IV ...
Página 1
... a point as merely a position in space ; a line , as the path of a moving point ; a surface , as generated by a moving line ; and a solid , as generated by a moving surface . 1 1 8. The direction in which the point is supposed to.
... a point as merely a position in space ; a line , as the path of a moving point ; a surface , as generated by a moving line ; and a solid , as generated by a moving surface . 1 1 8. The direction in which the point is supposed to.
Página 6
... positions , OB is called an oblique B / A line ; and the angles it forms with OA , oblique angles ; as , ZAOB ' , or ZAOB . DEF . 6. An angle less than a right angle is called an acute angle ; as , AOB ' . DEF . 7. An angle greater than ...
... positions , OB is called an oblique B / A line ; and the angles it forms with OA , oblique angles ; as , ZAOB ' , or ZAOB . DEF . 6. An angle less than a right angle is called an acute angle ; as , AOB ' . DEF . 7. An angle greater than ...
Página 7
... position in which AOB ' = AOB = R. By the term angle , we will understand an angle less than an extended angle . IV . Theorem . Two adjacent angles are together equal to two right angles . For the two adjacent angles , AOB ′ and B'OB ...
... position in which AOB ' = AOB = R. By the term angle , we will understand an angle less than an extended angle . IV . Theorem . Two adjacent angles are together equal to two right angles . For the two adjacent angles , AOB ′ and B'OB ...
Página 24
... position of the point E , it is evident that one of the lines , EA or EB , must cut the perpendicular , FC . Let EA cut it in the point D ; join DB . Then DE + DB > EB ( 16 ) ; but ADDB ( Part 1 ) : hence DEAD > EB ; or EA > EB . COR ...
... position of the point E , it is evident that one of the lines , EA or EB , must cut the perpendicular , FC . Let EA cut it in the point D ; join DB . Then DE + DB > EB ( 16 ) ; but ADDB ( Part 1 ) : hence DEAD > EB ; or EA > EB . COR ...
Términos y frases comunes
AB² ABCD AC² adjacent angles altitude angles are equal anharmonic ratio bisect called centre chord circle circumference circumscribed polygon cone congruent construct cylinder diagonals diameter dihedrals distance divided draw equal altitudes equal bases equally distant equations equiangular EXERCISE exterior angle face angles formed frustum Geometry harmonically hence homologous HYPOTH infinite number inscribed angle intersection lateral edges line joining lines drawn locus middle point number of sides Olney's opposite sides P₁ parallel lines parallelogram parallelopiped pass perpendicular plane angle point of contact polar pole polyhedral polyhedron prism Problem PROOF proportional PROVED pyramid quadrilateral radical axis radii radius rectangle regular polygon right angles SCHOLIUM segments solid angle sphere spherical excess spherical polygon spherical triangle square straight line symmetrical tangent Theorem triangle ABC trihedrals vertex vertices
Pasajes populares
Página 19 - IF two triangles have two sides of the one equal to two sides of the...
Página 34 - 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.
Página 14 - A Polygon of three sides is called a triangle ; one of four sides, a quadrilateral; one of five sides, a pentagon; one of six sides, a hexagon; one of seven sides, a heptagon; one of eight sides, an octagon ; one of ten sides, a decagon ; one of twelve sides, a dodecagon, &c.
Página 75 - The square described on the hypothenuse of a rightangled triangle is equal to the sum of the squares described on the other two sides.
Página 170 - Two prisms are to each other as the products of their bases by their altitudes ; prisms having equivalent bases are to each other as their altitudes; prisms having equal altitudes are to each other as their bases ; prisms having equivalent bases and equal altitudes are equivalent.
Página 69 - Two triangles, which have an angle of the one equal to an angle of the other, and the sides containing those angles proportional, are similar.