Syllabus of Plane Geometry: (corresponding to Euclid, Books I-VI) ...Macmillan & Company, 1876 - 58 sider |
Inni boken
Side 13
... straight lines are drawn to a point within the triangle , these are together less than the two other sides of the triangle , but contain a greater angle . THEOR . 14. If two triangles have two sides of the one equal to two sides of the ...
... straight lines are drawn to a point within the triangle , these are together less than the two other sides of the triangle , but contain a greater angle . THEOR . 14. If two triangles have two sides of the one equal to two sides of the ...
Side 14
... angle or obtuse angle , its remaining angles are acute . COR . 2. From a given point outside a given straight line , only one perpendicular can be drawn to that line . THEOR . 19. Of all the straight lines that can be drawn to a given ...
... angle or obtuse angle , its remaining angles are acute . COR . 2. From a given point outside a given straight line , only one perpendicular can be drawn to that line . THEOR . 19. Of all the straight lines that can be drawn to a given ...
Side 15
... angle . ( 3 ) If the side opposite the given angle in each triangle is not less than the other given side . SECTION 3 . PARALLELS AND PARALLELOGRAMS . DEF . 35. Parallel straight lines are such as are in the same plane and being ...
... angle . ( 3 ) If the side opposite the given angle in each triangle is not less than the other given side . SECTION 3 . PARALLELS AND PARALLELOGRAMS . DEF . 35. Parallel straight lines are such as are in the same plane and being ...
Side 16
... straight line on another straight line is the portion of the latter intercepted between perpendiculars let fall on ... angle is equal to the two interior opposite angles ; and the three interior angles of a triangle are together equal to ...
... straight line on another straight line is the portion of the latter intercepted between perpendiculars let fall on ... angle is equal to the two interior opposite angles ; and the three interior angles of a triangle are together equal to ...
Side 17
... angle , all its angles are right angles . DEF . 40. The figure is then called a rectangle . THEOR . 28. The opposite ... Straight lines that are equal and parallel have equal 18 A SYLLABUS OF projections on any other straight line G. 2 PLANE ...
... angle , all its angles are right angles . DEF . 40. The figure is then called a rectangle . THEOR . 28. The opposite ... Straight lines that are equal and parallel have equal 18 A SYLLABUS OF projections on any other straight line G. 2 PLANE ...
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Syllabus of Plane Geometry: (corresponding to Euclid, Books I-VI) ... Association for the improvement of geometrical teaching Uten tilgangsbegrensning - 1876 |
Vanlige uttrykk og setninger
adjacent angles adjoining sides angles are equal angles equal angles opposite antecedent bisects Book called centre circle a regular circumscribe conjugate angles consequent construct a triangle contrapositive diagonal distance divided internally equal altitude equal angles equal arcs equal circles equimultiples given angle given circle given point given ratio given rectilineal figure given straight line greater angle hypotenuse identically equal inscribe interior angles intersect lines are proportional locus middle point minor arcs multiple obtuse angle opposite angles parallel straight lines parallelogram perpendicular PLANE GEOMETRY point of contact point of division polygon PROB quadrilateral radii radius ratio compounded ratios are equal rectangle contained regular figures right angles Rule of Conversion Rule of Identity SECTION sector segments side opposite Similar rectilineal figures square straight angle straight line drawn straight line joining subtended Superposition SYLLABUS OF PLANE tangent THEOR Theorem triangles are identically vertex whence whole numbers
Populære avsnitt
Side 14 - 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.
Side 17 - Assuming that the areas of two triangles which have an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles...
Side 14 - Of all the straight lines that can be drawn to a given straight line from a given point outside it, the perpendicular is the shortest.
Side 13 - Any two sides of a triangle are together greater than the third side.
Side 23 - Iff a straight line be divided into any two parts, four times the rectangle contained by the whole line, and one of the parts, together with the square of the other part, is equal to the square of the straight line which is made up of the whole and that part.
Side 13 - If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles are congruent.
Side 34 - If the distance between the centres of two circles is equal to the difference of their radii, the two circles will touch each other internally.
Side 56 - If three straight lines be proportionals, the rectangle contained by the extremes is equal to the square on the mean ; and conversely, if the rectangle contained by the extremes be equal to the square on the mean, the three straight lines are proportionals.
Side 28 - In the same circle, or in equal circles, equal arcs are subtended by equal chords : and conversely, equal chords subtend equal arcs.
Side 4 - The enunciation of a Theorem consists of two parts, — the hypothesis, or that which is assumed, and the conclusion, or that which is asserted to follow therefrom. Thus in the typical Theorem, If A is B, then C is D, (i), the hypothesis is that A is B, and the conclusion, that C is D.