Plane Geometry: With Problems and ApplicationsAllyn and Bacon, 1910 - 280 páginas |
Dentro del libro
Resultados 1-5 de 25
Página 26
... axioms . While axioms for geometry may be chosen in many dif- ferent ways , it is customary to select such simple propo- sitions as are evident on mere statement . 61. Among the axioms thus far used are the following : Axioms . I. A ...
... axioms . While axioms for geometry may be chosen in many dif- ferent ways , it is customary to select such simple propo- sitions as are evident on mere statement . 61. Among the axioms thus far used are the following : Axioms . I. A ...
Página 27
... axioms are given in §§ 82 , 96 , 119 , and in Chapter VII . Certain other simple propositions may be assumed at present without detailed proof . These are called prelimi- nary theorems . PRELIMINARY THEOREMS . 62. Two distinct lines can ...
... axioms are given in §§ 82 , 96 , 119 , and in Chapter VII . Certain other simple propositions may be assumed at present without detailed proof . These are called prelimi- nary theorems . PRELIMINARY THEOREMS . 62. Two distinct lines can ...
Página 30
... axiom , or a theorem previously proved . It will then follow that the theorem is as certainly true as are the simple , unproved propositions with which we start , and upon which our argument is based . HISTORICAL NOTE . The Egyptians ...
... axiom , or a theorem previously proved . It will then follow that the theorem is as certainly true as are the simple , unproved propositions with which we start , and upon which our argument is based . HISTORICAL NOTE . The Egyptians ...
Página 31
... axioms , or “ common notions , " which are true of all things , such as , " If things are equal to the same thing ... axiom for both of these , as in § 60 . Much practice is needed in writing demonstrations in full detail . This ...
... axioms , or “ common notions , " which are true of all things , such as , " If things are equal to the same thing ... axiom for both of these , as in § 60 . Much practice is needed in writing demonstrations in full detail . This ...
Página 32
... Axiom VII . If a , b , c are line - segments ( or angles ) such that a > b and bc , or such that ab and b > c , then a > c . The proof of the following theorem is shown in full detail as it should be written by the pupil or given orally ...
... Axiom VII . If a , b , c are line - segments ( or angles ) such that a > b and bc , or such that ab and b > c , then a > c . The proof of the following theorem is shown in full detail as it should be written by the pupil or given orally ...
Otras ediciones - Ver todas
Términos y frases comunes
ABCD acute angle adjacent angles altitude angle formed angles are equal apothem axes of symmetry axioms base bisects called central angle chord circle tangent circumscribed coincide congruent corresponding sides Definition diagonal diameter distance divided dodecagon Draw drawn equal angles equal circles equiangular equilateral triangle EXERCISES exterior angle figure Find the area Find the locus Find the radius fixed point geometric Give the proof given point given segment given triangle Hence hypotenuse hypothesis inches inscribed intersection isosceles trapezoid isosceles triangle l₁ length line-segment measure meet middle points number of sides Outline of Proof parallel lines parallelogram perigon perimeter plane proof in full quadrilateral radii ratio rectangle regular hexagon regular octagon regular polygon rhombus right angles right triangle secant semicircle Show shown square straight angle straight line subtend SUGGESTION THEOREM trapezoid triangle ABC vertex vertices width
Pasajes populares
Página 223 - If two triangles have two sides of the one equal to two sides of the other...
Página 41 - An exterior angle of a triangle is equal to the sum of the two opposite interior angles.
Página 121 - Sines that the bisector of an angle of a triangle divides the opposite side into parts proportional to the adjacent sides.
Página 60 - 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.
Página 182 - The areas of two regular polygons of the same number of sides are to each other as the squares of their radii, or as the squares of their apothems.
Página 161 - The formula states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the base and altitude.
Página 227 - Find the locus of a point such that the difference of the squares of its distances from two fixed points is a constant.
Página 210 - The area of a rectangle is equal to the product of its base and altitude.
Página 31 - Kuclid divided unproved propositions into two classes: axioms, or "common notions," which are true of all things, such as, " If things are equal to the same thing they are equal to each other"; and postulates, which apply only to geometry, such as,