Elements of Plane and Solid GeometryGinn and Heath, 1877 - 398 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 35.
Σελίδα 10
... four right angles . Hence the whole angular magnitude about a point in a plane is equal to four right angles , and the angular magnitude about a point on one side of a straight line drawn through that point is equal to two right angles ...
... four right angles . Hence the whole angular magnitude about a point in a plane is equal to four right angles , and the angular magnitude about a point on one side of a straight line drawn through that point is equal to two right angles ...
Σελίδα 11
... four right angles ; and the sum of all the angles about a point on one side of a straight line drawn through that point , as AOB B.OC + COD , etc. , Fig . 2 , is equal to two right angles . Hence two adjacent angles , O CA and OC B ...
... four right angles ; and the sum of all the angles about a point on one side of a straight line drawn through that point , as AOB B.OC + COD , etc. , Fig . 2 , is equal to two right angles . Hence two adjacent angles , O CA and OC B ...
Σελίδα 15
... four angles which they make at the point of intersection are together equal to four right angles . PROPOSITION II . THEOREM . 51. When the sum of PERPENDICULAR AND OBLIQUE LINES . 15 PERPENDICULAR AND OBLIQUE LINES.
... four angles which they make at the point of intersection are together equal to four right angles . PROPOSITION II . THEOREM . 51. When the sum of PERPENDICULAR AND OBLIQUE LINES . 15 PERPENDICULAR AND OBLIQUE LINES.
Σελίδα 58
... four straight lines . 123. DEF . A Trapezium is a quadrilateral which has no two sides parallel . 124. DEF . A Trapezoid is a quadrilateral which has two sides parallel . 125. DEF . A Parallelogram is a quadrilateral which has its ...
... four straight lines . 123. DEF . A Trapezium is a quadrilateral which has no two sides parallel . 124. DEF . A Trapezoid is a quadrilateral which has two sides parallel . 125. DEF . A Parallelogram is a quadrilateral which has its ...
Σελίδα 69
... four sides is a Tetragon or Quadrilateral ; one of five sides is a Pentagon ; one of six sides is a Hexagon ; one of seven sides is a Heptagon ; one of eight sides is an Octagon ; one of ten sides is a Decagon ; one of twelve sides is a ...
... four sides is a Tetragon or Quadrilateral ; one of five sides is a Pentagon ; one of six sides is a Hexagon ; one of seven sides is a Heptagon ; one of eight sides is an Octagon ; one of ten sides is a Decagon ; one of twelve sides is a ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
AABC ABCD altitude arc A B axis base and altitude bisect centre circle circumference circumscribed coincide conical surface COROLLARY cylinder denote diagonals diameter dihedral angle distance divided Draw equal respectively equally distant equilateral equivalent figure frustum Geometry given point greater Hence homologous sides hypotenuse intersection isosceles lateral area lateral edges lateral faces Let A B Let ABC limit line A B measured by arc middle point mutually equiangular number of sides opposite parallel parallelogram parallelopiped perimeter perpendicular plane MN prism prove pyramid Q. E. D. PROPOSITION radii radius equal ratio rectangles regular polygon right angles right triangle SCHOLIUM segment sides of equal similar polygons slant height sphere spherical angle spherical polygon spherical triangle square subtend surface symmetrical tangent tetrahedron THEOREM third side trihedral vertex vertices volume
Δημοφιλή αποσπάσματα
Σελίδα 132 - To describe an isosceles triangle having each of the angles at the base double of the third angle.
Σελίδα 140 - 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.
Σελίδα 206 - In any proportion, the product of the means is equal to the product of the extremes.
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 353 - A sphere is a solid bounded by a surface all points of which are equally distant from a point within called the centre.
Σελίδα 179 - Any two rectangles are to each other as the products of their bases by their altitudes.
Σελίδα 192 - In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides diminished by twice the product of one of those sides and the projection of the other upon that side.
Σελίδα 150 - 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. A D A' Hyp. In triangles ABC and A'B'C', To prove AABC A A'B'C' A'B' x A'C ' Proof. Draw the altitudes BD and B'D'.