Inventional Geometry: A Series of Problems, Intended to Familiarize the Pupil with Geometrical Conceptions, and to Exercise His Inventive FacultyD. Appleton, 1876 - 97 páginas |
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Página 42
... hollow tetrahedron of one piece of cardboard , and show on paper how you ar- range the surfaces to fit each other , and give a sketch of the tetrahedron when made . You know how to fit a square in a circle . 132. Can you fit a square ...
... hollow tetrahedron of one piece of cardboard , and show on paper how you ar- range the surfaces to fit each other , and give a sketch of the tetrahedron when made . You know how to fit a square in a circle . 132. Can you fit a square ...
Página 44
... hollow hexahedron . Show on paper how you arrange the surfaces so as to fold together , and give a sketch of the hexahedron when finished ; and say what other names a hexahedron has . 144. Can you make a right - angled triangle , whose ...
... hollow hexahedron . Show on paper how you arrange the surfaces so as to fold together , and give a sketch of the hexahedron when finished ; and say what other names a hexahedron has . 144. Can you make a right - angled triangle , whose ...
Página 46
... triangle into four equal and similar parts ? When a body has eight surfaces , whose sides and angles are all respectively equal , it is called an octahedron . 161. Make of one piece of card a hollow oc 16 INVENTIONAL GEOMETRY .
... triangle into four equal and similar parts ? When a body has eight surfaces , whose sides and angles are all respectively equal , it is called an octahedron . 161. Make of one piece of card a hollow oc 16 INVENTIONAL GEOMETRY .
Página 47
... hollow oc tahedron : show how you arrange the surfaces so as to fold together correctly ; and give a sketch of the octahedron . 162. Can you divide an angle into four equal angles , without using more than four circles ? 163. In how ...
... hollow oc tahedron : show how you arrange the surfaces so as to fold together correctly ; and give a sketch of the octahedron . 162. Can you divide an angle into four equal angles , without using more than four circles ? 163. In how ...
Página 54
... hollow square pyramid , and let the slant height be twice the diagonal of the base . Give a plan of your method , and a sketch of the pyramid , when completed . 214. Can you make a pentagon outside a circle by means of a protractor ...
... hollow square pyramid , and let the slant height be twice the diagonal of the base . Give a plan of your method , and a sketch of the pyramid , when completed . 214. Can you make a pentagon outside a circle by means of a protractor ...
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Términos y frases comunes
adjacent angles AMERICAN BOOK COMPANY angular points arc is called arithmetic mean arrange the surfaces axis base boundaries breadth card a hollow circumference construct cube curve determine diagonal scale diameter dimensions distance divide a circle divide a line divide an equilateral dodecagon duodecimals ellipse English equal and similar equal sectors equilateral triangle essays find the area four equal geometry Give a plan give a sketch Give an example gles hexahedron icosahedron isosceles triangle length line drawn line of chords line of sines line of tangents means nonagon number of degrees obtuse angle octagon octahedron pentagon piece of card place a circle place a hexagon place a square polygon protractor pupil pyramid quadrant quadrilaterals radii radius rectangle reëntrant angle rhomboid rhombus right angle right-angled triangle secant sides is called solid square inches square yard student takes the name tetrahedron trapezium versed sine Wellesley College write its name zoid
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Página 43 - TRIANGLES upon the same base, and between the same parallels, are equal to one another.
Página 13 - I keep the subject constantly before me, and wait till the first dawnings open slowly by little and little into a full and clear light.
Página 5 - INTRODUCTION. it is considered that by geometry the architect constructs our buildings, the civil engineer our railways; that by a higher kind of geometry, the surveyor makes a map of a county or of a kingdom; that a geometry still higher is the foundation of the noble science of...