Inventional Geometry: A Series of Problems : Intended to Familiarize the Pupil with Geometrical Conceptions, and to Exercise His Inventive FacultyAmerican Book Company, 1876 - 97 páginas |
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Página 33
... rhombuses . Parallel- ograms which have all their angles equal , but their sides not all equal , called rectangles ... rhombus , of a rectangle , of a rhomboid , of a trapezoid , and of a trapezium . The line that joins the opposite ...
... rhombuses . Parallel- ograms which have all their angles equal , but their sides not all equal , called rectangles ... rhombus , of a rectangle , of a rhomboid , of a trapezoid , and of a trapezium . The line that joins the opposite ...
Página 34
... rhombus ? When a rhombus has its obtuse angles twice the size of those which are acute , it is called a regular rhombus . 81. Can you make a regular rhombus ? 82. Can you make a rectangle ? ' 83. Can you make a rhomboid ? 84. Can you ...
... rhombus ? When a rhombus has its obtuse angles twice the size of those which are acute , it is called a regular rhombus . 81. Can you make a regular rhombus ? 82. Can you make a rectangle ? ' 83. Can you make a rhomboid ? 84. Can you ...
Página 41
... rhombus , whose long diagonal shall be twice as long as the short one ? 128. Can you make a regular dodecagon in a circle ? 129. Can you show how many squares may be made to touch at one point ? You recollect that plane figure that has ...
... rhombus , whose long diagonal shall be twice as long as the short one ? 128. Can you make a regular dodecagon in a circle ? 129. Can you show how many squares may be made to touch at one point ? You recollect that plane figure that has ...
Página 43
... rhombus into four equal and similar figures several ways , and write in each figure its proper name . 141. Show how many hexagons may be made to touch one point . 142. Show how many circles may be made to touch one point without ...
... rhombus into four equal and similar figures several ways , and write in each figure its proper name . 141. Show how many hexagons may be made to touch one point . 142. Show how many circles may be made to touch one point without ...
Página 49
... rhombus ? 184. Can you divide any triangle into four equal and similar triangles ? 185. Can you invent a method of dividing a line into three equal parts ? 186. Can you place a hexagon in an equilat . 5 INVENTIONAL GEOMETRY . 49 176 ...
... rhombus ? 184. Can you divide any triangle into four equal and similar triangles ? 185. Can you invent a method of dividing a line into three equal parts ? 186. Can you place a hexagon in an equilat . 5 INVENTIONAL GEOMETRY . 49 176 ...
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Términos y frases comunes
adjacent angles AMERICAN BOOK COMPANY angular points arc is called arithmetic arithmetic mean arrange the surfaces BALFOUR STEWART Barnes's Brief History base boundaries breadth card a hollow cents circumference Cloth construct cube curve diameter dimensions divide a circle divide a line divide an equilateral dodecagon duodecimals EDWARD EGGLESTON ellipse equal and similar equal sectors equilateral triangle find the area four equal FRANKLIN TAYLOR geometry Give a plan give a sketch gles HERBERT SPENCER hexahedron icosahedron illustrated Inventional Geometry isosceles triangle length line drawn line of chords line of sines line of tangents nonagon number of degrees octagon octahedron pentagon perpendicular piece of card place a circle place a hexagon place a square polygon protractor pupil pyramid quadrant quadrilaterals radii radius ratio rectangle reëntrant angle rhomboid rhombus right angle right-angled triangle secant sides is called solid square inches takes the name tetrahedron Thalheimer's touch trapezium versed sine write its name zoid
Pasajes populares
Página 41 - TRIANGLES upon the same base, and between the same parallels, are equal to one another.
Página 21 - All arcs of circles that are not so great as a semi-circumference are called less arcs. A line that joins the extremities of an arc is called the chord of that arc. When two radii connect together any two points in the circumference of a circle which are on exactly the opposite sides of the centre, they make a chord, which is called the diameter of the circle, and such diameter divides the circle into two equal segments, 1 which take the name of semicircles.