The Elements of GeometryJ. Wiley & Sons, 1885 - 366 sider |
Inni boken
Resultat 1-5 av 58
Side viii
... called tri - dimensional , 45. Straight line defined 46. A curve defined 47. Line henceforth line 48. A sect defined . ∞ ∞ ∞ ∞ ∞ 00 8 67 . A perpendicular defined • • 13 8 68 . Complement defined • 13 8 69 . Acute angle defined ...
... called tri - dimensional , 45. Straight line defined 46. A curve defined 47. Line henceforth line 48. A sect defined . ∞ ∞ ∞ ∞ ∞ 00 8 67 . A perpendicular defined • • 13 8 68 . Complement defined • 13 8 69 . Acute angle defined ...
Side 2
... called the subject , and the last the predicate . II . Definitions . — Classes . 10. Terms that name a single object are called individual term ; e.g. , Newton . 11. Terms that name any one of a group of objects are called class terms ...
... called the subject , and the last the predicate . II . Definitions . — Classes . 10. Terms that name a single object are called individual term ; e.g. , Newton . 11. Terms that name any one of a group of objects are called class terms ...
Side 3
... called the contradictory of the first , and is denoted by non - r , meaning " not x ; " e.g. , the contradictory of animate is inanimate . 14. Any one thing belongs either to the class x or to the class non - r , but no thing belongs to ...
... called the contradictory of the first , and is denoted by non - r , meaning " not x ; " e.g. , the contradictory of animate is inanimate . 14. Any one thing belongs either to the class x or to the class non - r , but no thing belongs to ...
Side 4
... called each the contranominal form of the other . Though both forms express the same fact , it is , nevertheless , often of importance to consider both . One form may more naturally connect the fact with others already in our mind , and ...
... called each the contranominal form of the other . Though both forms express the same fact , it is , nevertheless , often of importance to consider both . One form may more naturally connect the fact with others already in our mind , and ...
Side 5
... called the obverse of the original proposition . Of course , if the inverse is true , the obverse is true , and vice versa . To prove the obverse , amounts to the same thing as proving the inverse . They are the same statement , but may ...
... called the obverse of the original proposition . Of course , if the inverse is true , the obverse is true , and vice versa . To prove the obverse , amounts to the same thing as proving the inverse . They are the same statement , but may ...
Innhold
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Vanlige uttrykk og setninger
ABCD alternate angles angles are equal angles equal angles opposite base bisect called chord circumcenter coincide common commutative law CONCLUSION construction COROLLARY diagonal diameter divided draw end point equal are congruent equal sects equiangular equilateral equivalent exterior angle figure given line given point given sect greater greatest common divisor hypothenuse HYPOTHESIS included angle inscribed inscribed angle intercepted interior isosceles triangle less line perpendicular magnitudes meet multiples number of sides pair parallelogram pass perigon perimeter perpendicular bisector plane MN PROOF proportional quadrilateral radii radius ratio rectangle rectangle contained regular polygon respectively equal right angle Rule of Inversion sect joining segment sphere spherical polygon spherical triangle square straight angle subtended surface symmetrical tangent tetrahedron THEOREM THEOREM VII transversal triangles are congruent vertex vertices
Populære avsnitt
Side 44 - If two triangles have two sides of one equal respectively to two sides of the other, but the included angle of the first triangle greater than the included angle of the second, then the third side of the first is greater than the third side of the second.
Side 112 - To divide a given straight line into two parts, so that the rectangle contained by the whole, and one of the parts, may be equal to the square of the other part.
Side 24 - A right-angled triangle is one which has a right angle. The side opposite the right angle is called the hypothenuse.
Side 190 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Side 270 - BC with the same radius. Then a line through A touching this arc will be the required parallel. Or, use a straight edge and triangle.
Side 101 - If there be two straight lines, one of which is divided into any number of parts, the rectangle contained by the two straight lines is equal to the rectangles contained by the undivided line, and the several parts of the divided line.
Side 266 - If two triangles have two sides and the included angle of one equal respectively to two sides and the included angle of the other, the triangles are equal.
Side 104 - If a straight line be bisected, and produced to any point ; the rectangle contained by the whole line thus produced, and the part of it produced, together with the square...
Side 107 - In an obtuse-angled triangle the square on the side opposite the obtuse angle is greater than the sum of the squares on the other two sides by twice the rectangle contained by either side and the projection on it of the other side.