Modern Methods in Elementary GeometryMacmillan, 1868 - 112 σελίδες |
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Σελίδα 2
... four right angles . The minute - hand of a watch passes over four right angles in an hour . All right angles are equal , and the space occupied by two right angles is always the same ; we shall often denote it by 2R . An obtuse angle is ...
... four right angles . The minute - hand of a watch passes over four right angles in an hour . All right angles are equal , and the space occupied by two right angles is always the same ; we shall often denote it by 2R . An obtuse angle is ...
Σελίδα 8
... four angles which we will denote by ( 1 ) , ( 2 ) , ( 3 ) , ( 4 ) ; ( I ) , ( II ) , ( III ) , ( IV ) . If one angle of the first set be equal to the corresponding E 4/1 angle of the second set , the A- B 3/2 IV / I C- III / II F other ...
... four angles which we will denote by ( 1 ) , ( 2 ) , ( 3 ) , ( 4 ) ; ( I ) , ( II ) , ( III ) , ( IV ) . If one angle of the first set be equal to the corresponding E 4/1 angle of the second set , the A- B 3/2 IV / I C- III / II F other ...
Σελίδα 19
... four - sided figure which has its opposite sides parallel . THEOREM XVI . The opposite sides and angles of parallelograms are equal . Let ABCD be a parallelogram . Then shall AB = CD , BC = DA , AC , and B = D. Join BD . A B Then the ...
... four - sided figure which has its opposite sides parallel . THEOREM XVI . The opposite sides and angles of parallelograms are equal . Let ABCD be a parallelogram . Then shall AB = CD , BC = DA , AC , and B = D. Join BD . A B Then the ...
Σελίδα 20
... four right angles , and the interior angles to twice as many right angles as the figure has sides , diminished by four right angles . D ' B ' E C E Let ABCDE be any convex polygon . B Through any point O draw OB ' , OC ' 20 ELEMENTARY ...
... four right angles , and the interior angles to twice as many right angles as the figure has sides , diminished by four right angles . D ' B ' E C E Let ABCDE be any convex polygon . B Through any point O draw OB ' , OC ' 20 ELEMENTARY ...
Σελίδα 21
... four right angles . COR . The exterior angle of any regular polygon of n sides is equal to one nth part of four right angles . LOCI . THEOREM XIX . Through the middle point of AB let CD be drawn perpendicular to AB . Then every point on ...
... four right angles . COR . The exterior angle of any regular polygon of n sides is equal to one nth part of four right angles . LOCI . THEOREM XIX . Through the middle point of AB let CD be drawn perpendicular to AB . Then every point on ...
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A'BC Algebra alternate angle altitude angle equal arc CD ARITHMETIC BC² bisect BROOKE FOSS WESTCOTT CA² Cambridge centre chord circle touching circumference cloth coincide congruent CONIC SECTIONS contain convex angle convex polygon Crown 8vo diagonals diameter dicular divide Edward Thring ELEMENTARY TREATISE equal angles equally distant equally remote equiangular equiangular and similar equilateral triangle Examples exterior angle Fcap Find the locus GEOMETRY given angle given circle given line given point given straight line greater Hence intersect isosceles John's College late Fellow Let ABCD line drawn MATHEMATICAL measure meet middle point opposite sides parallel to CD parallelogram perpen perpendicular polygon produced quadrilateral figure radius rectangle right angles right-angled triangle Schools Second Edition segments Shew shortest line similar triangles student tangent THEOREM THEOREM VII Third Edition trapezium triangle ABC vertex