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 37
... half long , and erect a square upon it , and find the centre of it . 99. Can you place a circle in a square ? 100. Place three circles so that the circum- ference of each may rest upon the centres of the other two , and find the centre ...
... half long , and erect a square upon it , and find the centre of it . 99. Can you place a circle in a square ? 100. Place three circles so that the circum- ference of each may rest upon the centres of the other two , and find the centre ...
Página 55
... - angle that is longer than either of the other two . Give its name , and show from such fact that the chord of 45 ° is longer than half the chord of 90 ° . 224. Make by the protractor an angle of 90 ° INVENTIONAL GEOMETRY . 55.
... - angle that is longer than either of the other two . Give its name , and show from such fact that the chord of 45 ° is longer than half the chord of 90 ° . 224. Make by the protractor an angle of 90 ° INVENTIONAL GEOMETRY . 55.
Página 62
... of card the frustun of a pentagonal pyramid , and let the small end of the frustum contain one - half the surface of that which the greater end contains . 249. Out of a piece of paper , having irregu 62 INVENTIONAL GEOMETRY .
... of card the frustun of a pentagonal pyramid , and let the small end of the frustum contain one - half the surface of that which the greater end contains . 249. Out of a piece of paper , having irregu 62 INVENTIONAL GEOMETRY .
Página 68
... half an inch , and measure the angles of the nonagon by the line of tan- gents . 284. How many dodecagons may be made to touch one dodecagon at the angles ? 285. How many dodecagons may be made to touch one dodecagon at the sides ? 286 ...
... half an inch , and measure the angles of the nonagon by the line of tan- gents . 284. How many dodecagons may be made to touch one dodecagon at the angles ? 285. How many dodecagons may be made to touch one dodecagon at the sides ? 286 ...
Página 72
... half the size ? 316. Can you change a square to an obtuse angled isosceles triangle ? 317. Can you show by a figure how much more is than ? 318. Can you make an isosceles triangle , each of whose sides shall be half the base ? 319. Can ...
... half the size ? 316. Can you change a square to an obtuse angled isosceles triangle ? 317. Can you show by a figure how much more is than ? 318. Can you make an isosceles triangle , each of whose sides shall be half the base ? 319. Can ...
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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
Pasajes populares
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...