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 |
Dentro del libro
Resultados 1-5 de 8
Página 61
... at the centre and the angle of the octagon , and prove the correct- ness of your work by calculation . A scale having its breadth divided into ten equally long 6 INVENTIONAL GEOMETRY . 61 ever are together equal to the square upon the ...
... at the centre and the angle of the octagon , and prove the correct- ness of your work by calculation . A scale having its breadth divided into ten equally long 6 INVENTIONAL GEOMETRY . 61 ever are together equal to the square upon the ...
Página 68
... calculation . 287. Can you determine the number of bricks it would take to cover a floor , 6 yards long and 5 wide , allowing 50 for breakage ? 288. How would you make a square by means of the protractor and a pencil , without a pair of ...
... calculation . 287. Can you determine the number of bricks it would take to cover a floor , 6 yards long and 5 wide , allowing 50 for breakage ? 288. How would you make a square by means of the protractor and a pencil , without a pair of ...
Página 71
... calculation . 311. Given , from a line of chords , the chord of 90 ° , it is required to find the radius of that line of chords . You have drawn one triangle similar to another , and one rhomboid similar to another ; can you draw one ...
... calculation . 311. Given , from a line of chords , the chord of 90 ° , it is required to find the radius of that line of chords . You have drawn one triangle similar to another , and one rhomboid similar to another ; can you draw one ...
Página 77
... to three decimal places , and prove its truth by calculation . 349. Can you calculate the area of an equi- lateral triangle whose side is 1 ? 350. Illustrate by geometry the respective values of .9 , INVENTIONAL GEOMETRY . rry.
... to three decimal places , and prove its truth by calculation . 349. Can you calculate the area of an equi- lateral triangle whose side is 1 ? 350. Illustrate by geometry the respective values of .9 , INVENTIONAL GEOMETRY . rry.
Página 80
... calculation , the length of the side of that rhombus ? 359. Can you convert an equilateral triangle into an irregular pentagon ? 360. Point out upon a tetrahedron two lines that are in the same plane , and two that are not in the same ...
... calculation , the length of the side of that rhombus ? 359. Can you convert an equilateral triangle into an irregular pentagon ? 360. Point out upon a tetrahedron two lines that are in the same plane , and two that are not in the same ...
Otras ediciones - Ver todas
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 geometry Give a plan give a sketch gles HERBERT SPENCER hexagon 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.