First lessons in Plane Geometry. Together with an application of them to the solution of problems, etcCarter and Hendee, 1830 - 12 σελίδες |
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Αποτελέσματα 1 - 5 από τα 21.
Σελίδα 3
... give an example : when you set out from Boston to Roxbury , you may indicate the place you start from , which you may call the point of starting . If this chances to be Marlborough Hotel , you do not ask how long , or broad , or deep ...
... give an example : when you set out from Boston to Roxbury , you may indicate the place you start from , which you may call the point of starting . If this chances to be Marlborough Hotel , you do not ask how long , or broad , or deep ...
Σελίδα 4
... give an illustration of this definition , by taking , any where on a piece of paste board , two points and joining them by a piece of stiff wire . Then , by bend- ing the board , the wire which represents the line will be off the board ...
... give an illustration of this definition , by taking , any where on a piece of paste board , two points and joining them by a piece of stiff wire . Then , by bend- ing the board , the wire which represents the line will be off the board ...
Σελίδα 36
... give his pupils an ocular demonstra- tian of this truth , by cutting the three angles b , d , e , from a triangle , and then placing them along side of each other they will be in a straight line . angle e , will be equal to the sum of ...
... give his pupils an ocular demonstra- tian of this truth , by cutting the three angles b , d , e , from a triangle , and then placing them along side of each other they will be in a straight line . angle e , will be equal to the sum of ...
Σελίδα 63
... give here à perfectly elementary theory of geometrical proportions , and to estab- lish every principle geometrically , and by simple induction . Intending the above theory for those who have not yet ac- quired the least knowledge of ...
... give here à perfectly elementary theory of geometrical proportions , and to estab- lish every principle geometrically , and by simple induction . Intending the above theory for those who have not yet ac- quired the least knowledge of ...
Σελίδα 64
... give an example : If you draw a house , you must draw it according to a certain scale ; that is , you will draw it one thousand , two thousand , three thousand , & c . times smaller than the building itself : but then you will be ...
... give an example : If you draw a house , you must draw it according to a certain scale ; that is , you will draw it one thousand , two thousand , three thousand , & c . times smaller than the building itself : but then you will be ...
Άλλες εκδόσεις - Προβολή όλων
First Lessons in Plane Geometry: Together with an Application of Them to the ... Francis Joseph Grund Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2009 |
First Lessons in Plane Geometry: Together with an Application of Them to the ... Francis Joseph Grund Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2009 |
Συχνά εμφανιζόμενοι όροι και φράσεις
adjacent angles angle ABC angle ACB angle opposite angle x basis and height bisected called centre chord circum circumference circumscribed circle consequently construct the triangle DEMON diagonal diameter draw the lines equal angles exterior angle figure ABCDEF found by multiplying fourth term geometrical figures geometrical proportion given angle given circle given straight line given triangle hypothenuse isosceles triangle line AB line AC line CD line MN LUDOLPH VAN CEULEN mean proportional number of sides parallel lines parallelogram perpendicular points of division PROBLEM prove quadrilateral Query 11 radii radius ratio rectilinear figure regular polygon ABCDEF remaining sides Remark right angles right-angular triangle Sect semicircle side AB side AC similar triangles smaller SOLUTION square feet square inches square seconds tangent third line three angles three sides trapezoid trian triangle ABC triangle are equal vertex zoid
Δημοφιλή αποσπάσματα
Σελίδα 195 - Upon a given straight line to describe a segment of a circle, which shall contain an angle equal to a given rectilineal angle.
Σελίδα 94 - If two triangles have two sides of the one equal to two sides of the other, each to each, but the...
Σελίδα 211 - HDG, the corresponding sides are proportional (page 70, 4thly) ; therefore we have the proportion ED : DG =AD : HD (II.) This last proportion has the first ratio common with the first proportion ; consequently the two remaining ratios are in a geometrical proportion (Theory of Prop., Prin. 3d) ; that is, we have AD : HD = DG: BD; and as, in...
Σελίδα 173 - 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 176 - The perimeters of two regular polygons of the same number of sides, are to each other as their homologous sides, and their areas are to each other as the squares of those sides (Prop.
Σελίδα 175 - The side of a regular hexagon inscribed in a circle is equal to the radius of the circle.
Σελίδα 129 - Now, since the areas of similar polygons are to each other as the squares of their homologous sides...