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 26
... equilateral triangle into two parts that shall be equal to each other and similar to each other ? 1 Triangles are also called trilaterals . 2 Equilateral triangles are also called trigons . 49. Can you draw one line perpendicular to ...
... equilateral triangle into two parts that shall be equal to each other and similar to each other ? 1 Triangles are also called trilaterals . 2 Equilateral triangles are also called trigons . 49. Can you draw one line perpendicular to ...
Página 36
... equilateral triangle , and write in each angle the number of degrees it contains . 93. Can you place a circle in a semi - circle ? 94. Can you place a hexagon in a circle ? 95. Can you divide a circle into eight equal sectors ? A sector ...
... equilateral triangle , and write in each angle the number of degrees it contains . 93. Can you place a circle in a semi - circle ? 94. Can you place a hexagon in a circle ? 95. Can you divide a circle into eight equal sectors ? A sector ...
Página 37
... equilateral triangle which is equally distant from each side of the triangle , and equally distant from each of the angular points of the triangle , is called the centre of the triangle . 101. Can you make an equilateral triangle whose ...
... equilateral triangle which is equally distant from each side of the triangle , and equally distant from each of the angular points of the triangle , is called the centre of the triangle . 101. Can you make an equilateral triangle whose ...
Página 38
... equilateral triangle into three equal and similar parts ? 105. What is the greatest number of angles that can be made with four lines ? 106. Make a hexagon , and place a trigon on the outside of each of its boundaries , and say what the ...
... equilateral triangle into three equal and similar parts ? 105. What is the greatest number of angles that can be made with four lines ? 106. Make a hexagon , and place a trigon on the outside of each of its boundaries , and say what the ...
Página 40
... equilateral triangles may be placed around one equilateral triangle to touch it . 122. Divide a square into four equal and similar figures several ways , and give the name to each variety . 123. Can you place two hexagons so that one ...
... equilateral triangles may be placed around one equilateral triangle to touch it . 122. Divide a square into four equal and similar figures several ways , and give the name to each variety . 123. Can you place two hexagons so that one ...
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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.