Elements of Geometry, After Legendre, with a Selection of Geometrical Exercises, and Hints for the Solution of the Same |
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Αποτελέσματα 1 - 5 από τα 49.
Σελίδα 21
... parallel . 18. A diagonal of a polygon is a line which joins two vertices , not adjacent to one another . Thus , AC , AD , AE , AF , are diagonals . B. D A G E 19. An equilateral polygon is one which has all its BOOK I. 21.
... parallel . 18. A diagonal of a polygon is a line which joins two vertices , not adjacent to one another . Thus , AC , AD , AE , AF , are diagonals . B. D A G E 19. An equilateral polygon is one which has all its BOOK I. 21.
Σελίδα 42
... vertices of the two angles . They are said to lie in opposite directions when they are on opposite sides of this line . Therefore , B L M E N PROPOSITION XXVIII . THEOREM . If two angles have their sides perpendicular , each to each ...
... vertices of the two angles . They are said to lie in opposite directions when they are on opposite sides of this line . Therefore , B L M E N PROPOSITION XXVIII . THEOREM . If two angles have their sides perpendicular , each to each ...
Σελίδα 48
... vertices , is less than the sum of the three sides of the triangle , and greater than half this sum . 13. Two quadrilaterals which have one angle in each equal , and the four sides of the one equal to the four sides of the other , each ...
... vertices , is less than the sum of the three sides of the triangle , and greater than half this sum . 13. Two quadrilaterals which have one angle in each equal , and the four sides of the one equal to the four sides of the other , each ...
Σελίδα 49
... vertices of a given triangle , a line be drawn parallel to the opposite side , a new triangle will be formed , equal to four times the given triangle . And each side of the new tri- angle is double the corresponding side of the given ...
... vertices of a given triangle , a line be drawn parallel to the opposite side , a new triangle will be formed , equal to four times the given triangle . And each side of the new tri- angle is double the corresponding side of the given ...
Σελίδα 50
... vertices on the opposite sides ) meet in a common point . ( An easy Corollary of 27 , by constructing the triangle which is four times the given triangle , 24. ) 29. The three lines which bisect the angles of a triangle meet in a common ...
... vertices on the opposite sides ) meet in a common point . ( An easy Corollary of 27 , by constructing the triangle which is four times the given triangle , 24. ) 29. The three lines which bisect the angles of a triangle meet in a common ...
Άλλες εκδόσεις - Προβολή όλων
Elements of Geometry, After Legendre: With a Selection of Geometrical ... Charles Scott Venable Προβολή αποσπασμάτων - 1890 |
Elements of Geometry, After Legendre: With a Selection of Geometrical ... Adrien Marie Legendre,Charles Scott Venable Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2014 |
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD altitude angle ACB angles equal apothem base bisect bisectrix Book centre chord circ circumference circumscribed circle common cone Construct convex surface cylinder decagon described diagonals diameter dicular diedral distance divided draw drawn edges equally distant equilateral triangle equivalent Exercises exterior angles Find the locus frustum Geometric given circle given line given point given straight line greater Hence homologous homologous sides hypothenuse isosceles join let fall line parallel loci measure median meet middle point number of sides opposite parallelogram parallelopipedon perimeter perpen perpendicular plane angles plane MN point of contact point of intersection polyedron prism problem Prop proportional PROPOSITION pyramid quadrilateral radii ratio rectangle regular polygon right angled triangle S-ABC SCHOLIUM segment similar solid angle sphere spherical triangle square tangent tetraedron THEOREM triangle ABC triangular prism triedral vertex vertices volume
Δημοφιλή αποσπάσματα
Σελίδα 255 - THE sphere is a solid terminated by a curve surface, all the points of which are equally distant from a point within, called the centre.
Σελίδα 49 - The straight line joining the middle points of two sides of a triangle is parallel to the third side and equal to half of it 46 INTERCEPTS BY PARALLEL LINES.
Σελίδα 20 - Parallel straight lines are such as are in the same plane, and which, being produced ever so far both ways, do not meet.
Σελίδα 54 - 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 45 - 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.
Σελίδα 67 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Σελίδα 107 - The square described on the hypothenuse of a right-angled triangle is equivalent to the sum of the squares described on the other two sides.
Σελίδα 300 - The volume of a frustum of a cone is equivalent to the sum of the volumes of three cones whose common altitude is the altitude of the frustum and whose bases are the lower base, the upper base, and a mean proportional between the bases of the frustum.
Σελίδα 276 - Scholium. The spherical ungula, bounded by the planes AMB, ANB, is to the whole solid sphere, as the angle A is to four right angles. For, the lunes being equal, the spherical ungulas will also be equal ; hence two spherical ungulas are to each other, as the angles formed by the planes which bound them. PROPOSITION XVIII.
Σελίδα 9 - Ratio is the relation which one quantity bears to another in respect of magnitude, the comparison being made by considering what multiple, part, or parts, one is of the other.