Elements of Plane and Solid GeometryGinn, Heath, & Company, 1885 - 398 σελίδες |
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Αποτελέσματα 1 - 5 από τα 40.
Σελίδα 9
... greater than a right angle ; as the angle DEF . • Α C D B B A C F D E 29. DEF . Acute and obtuse angles , in distinction from right angles , are called ob- lique angles ; and intersecting lines which are not perpendicular to each other ...
... greater than a right angle ; as the angle DEF . • Α C D B B A C F D E 29. DEF . Acute and obtuse angles , in distinction from right angles , are called ob- lique angles ; and intersecting lines which are not perpendicular to each other ...
Σελίδα 12
... greater than A ' B ' C ' . This method of superposition en- ables us to add magnitudes of the same kind . Thus , if we have two straight lines A B and CD , by A C A BC -D D B placing the point C on B , and keeping C D in the same direc ...
... greater than A ' B ' C ' . This method of superposition en- ables us to add magnitudes of the same kind . Thus , if we have two straight lines A B and CD , by A C A BC -D D B placing the point C on B , and keeping C D in the same direc ...
Σελίδα 13
... greater than any of its parts . 9. The whole is equal to all its parts taken together . 47. POSTULATES . Let it be granted - - 1. That a straight line can be drawn from any one point to any other point . 2. That a straight line can be ...
... greater than any of its parts . 9. The whole is equal to all its parts taken together . 47. POSTULATES . Let it be granted - - 1. That a straight line can be drawn from any one point to any other point . 2. That a straight line can be ...
Σελίδα 14
... greater than . < is ( or are ) less than . rt . A right triangle . rt . A right triangles . O circle . circles . + increased by . - diminished by . X multiplied by . ÷ divided by . Post . postulate . Def . definition . Ax . axiom . Hyp ...
... greater than . < is ( or are ) less than . rt . A right triangle . rt . A right triangles . O circle . circles . + increased by . - diminished by . X multiplied by . ÷ divided by . Post . postulate . Def . definition . Ax . axiom . Hyp ...
Σελίδα 19
... greater than the sum of two other lines similarly drawn , but included by them . C E A B Let CA and C B be two lines drawn from the point C to the extremities of the straight line A B. Let O A and O B be two lines similarly drawn , but ...
... greater than the sum of two other lines similarly drawn , but included by them . C E A B Let CA and C B be two lines drawn from the point C to the extremities of the straight line A B. Let O A and O B be two lines similarly drawn , but ...
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AABC ABCD altitude apothem arc A B axis base and altitude centre centre of symmetry chord circumference circumscribed coincide cone of revolution conical surface COROLLARY cylinder denote diagonals diameter dihedral angle distance divided draw equal respectively equally distant equilateral equivalent frustum given point Hence homologous sides hypotenuse intersection isosceles lateral area lateral edges lateral faces Let A B Let ABC line A B measured by arc middle point number of sides opposite parallel lines parallelogram parallelopiped pass perimeter perpendicular plane MN polyhedral angle prove Q. E. D. PROPOSITION radii ratio rect rectangles regular inscribed regular polygon right angles right section S-ABC SCHOLIUM similar polygons slant height sphere spherical angle spherical polygon spherical triangle straight line drawn surface tangent tetrahedron THEOREM trihedral upper base vertex vertices volume