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 51
... measure an angle , and determine how many degrees it contains , as also by which we can make an arc of a circle that shall subtend a certain number of degrees , or can measure an arc and determine how many degrees it subtends , are ...
... measure an angle , and determine how many degrees it contains , as also by which we can make an arc of a circle that shall subtend a certain number of degrees , or can measure an arc and determine how many degrees it subtends , are ...
Página 53
... measure them by the protractor . 209. Make by geometry an angle of 30 ° , and its supplement , and measure by the protractor the correctness of each . 210. Can you make a semicircle equal to a circle ? 211. Make a few triangles of ...
... measure them by the protractor . 209. Make by geometry an angle of 30 ° , and its supplement , and measure by the protractor the correctness of each . 210. Can you make a semicircle equal to a circle ? 211. Make a few triangles of ...
Página 55
... measure its angles by the line of chords and by the protractor . 223. There is one side of a right - angled tri- angle that is longer than either of the other two . Give its name , and show from such fact that the chord of 45 ° is ...
... measure its angles by the line of chords and by the protractor . 223. There is one side of a right - angled tri- angle that is longer than either of the other two . Give its name , and show from such fact that the chord of 45 ° is ...
Página 56
... measures . In England , the system of linear measures squared is generally used to express areas ; as 1 1 The terms acres and roods are the exceptions . square inches , square feet , square yards , square 56 INVENTIONAL GEOMETRY .
... measures . In England , the system of linear measures squared is generally used to express areas ; as 1 1 The terms acres and roods are the exceptions . square inches , square feet , square yards , square 56 INVENTIONAL GEOMETRY .
Página 61
... measure by a line of chords the angle 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 ...
... measure by a line of chords the angle 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 ...
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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.