Elements of GeometryGinn, Heath, & Company, 1882 - 250 σελίδες |
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Αποτελέσματα 1 - 5 από τα 42.
Σελίδα 8
... Vertex , and the lines are called the Sides of the angle . An angle is designated by placing a letter at its vertex , and one at each of its sides . In reading , we name the three let- ters , putting the letter at the vertex between the ...
... Vertex , and the lines are called the Sides of the angle . An angle is designated by placing a letter at its vertex , and one at each of its sides . In reading , we name the three let- ters , putting the letter at the vertex between the ...
Σελίδα 9
... vertex and a common side between them . Thus the angles CDE and CDF are adjacent angles . E D A B C -F 25. DEF . A Right Angle is an angle included between two straight lines which meet each other so that the two adjacent angles formed ...
... vertex and a common side between them . Thus the angles CDE and CDF are adjacent angles . E D A B C -F 25. DEF . A Right Angle is an angle included between two straight lines which meet each other so that the two adjacent angles formed ...
Σελίδα 10
... vertex , and their sides extending in opposite directions . Thus the angles AOD and COB are vertical angles , as also the angles AOC and DO B. A C B D B C A D ON ANGULAR MAGNITUDE . 33. Let the lines B B ' and A A ' be in the same plane ...
... vertex , and their sides extending in opposite directions . Thus the angles AOD and COB are vertical angles , as also the angles AOC and DO B. A C B D B C A D ON ANGULAR MAGNITUDE . 33. Let the lines B B ' and A A ' be in the same plane ...
Σελίδα 11
... vertices coincide in position and their sides in direction . In applying this test of equality , we assume that a line may be moved from one place to another without altering its length ; that an angle may be taken up , turned over ...
... vertices coincide in position and their sides in direction . In applying this test of equality , we assume that a line may be moved from one place to another without altering its length ; that an angle may be taken up , turned over ...
Σελίδα 12
... vertex B shall fall on B ' , then if the side BA fall on B ' A ' , the angle ABC equals the angle A'B'C ' " ; if the side BA fall between B'C ' and B'A ' in the direction B ' D , the angle ABC is less than A ' B ' C " ; but if the side ...
... vertex B shall fall on B ' , then if the side BA fall on B ' A ' , the angle ABC equals the angle A'B'C ' " ; if the side BA fall between B'C ' and B'A ' in the direction B ' D , the angle ABC is less than A ' B ' C " ; but if the side ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
A B C D AABC AACB ABCD adjacent angles apothem arc A B base and altitude centre centre of symmetry chord circumscribed coincide construct a square COROLLARY decagon describe an arc diagonals diameter divided Draw equal arcs equal distances equal respectively equiangular equiangular polygon equilateral equilateral polygon exterior angles figure given circle given line given polygon given square hexagon homologous sides hypotenuse isosceles Let A B Let ABC line A B measured by arc middle point number of sides parallelogram perpendicular plane polygon ABC polygon similar PROBLEM prove Q. E. D. PROPOSITION quadrilateral radii radius equal ratio rect rectangles regular inscribed regular polygon required to construct right angles right triangle SCHOLIUM segment semicircle similar polygons square equivalent subtend symmetrical with respect tangent THEOREM triangle ABC vertex vertices
Δημοφιλή αποσπάσματα
Σελίδα 40 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Σελίδα 124 - To describe an isosceles triangle having each of the angles at the base double of the third angle.
Σελίδα 201 - In any proportion, the product of the means is equal to the product of the extremes.
Σελίδα 173 - Any two rectangles are to each other as the products of their bases by their altitudes.
Σελίδα 185 - In any obtuse triangle, the square of the side opposite the obtuse angle is equal to the sum of the squares of the other...
Σελίδα 73 - A CIRCLE is a plane figure bounded by a curved line, all the points of which are equally distant from a point within called the centre; as the figure ADB E.
Σελίδα 41 - The exterior angle of a triangle is equal to the sum of the two opposite interior angles.
Σελίδα 140 - If a line divides two sides of a triangle proportionally, it is parallel to the third side.
Σελίδα 113 - From A as a centre, with a radius equal to o, describe an arc ; and from B as a centre, with a radius equal to m, describe an arc intersecting the former arc at С.
Σελίδα 155 - In a series of equal ratios, the sum of the antecedents is to the sum of the consequents as any antecedent is to its consequent.