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 25
... perpendicular to the other ; and the one to which the other is said to be perpendicular is called the base . 38. Make a right angle , and against the sides of the right angle write their respective names . 39. Can you make three angles ...
... perpendicular to the other ; and the one to which the other is said to be perpendicular is called the base . 38. Make a right angle , and against the sides of the right angle write their respective names . 39. Can you make three angles ...
Página 26
... 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 another line 26 INVENTIONAL GEOMETRY .
... 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 another line 26 INVENTIONAL GEOMETRY .
Página 27
... perpendicular to another line , from a point that is in the line but not in the middle of it ? The figure formed by two radii and an arc is called a sector . When a circle is divided into four equal sec- tors , each of such sectors ...
... perpendicular to another line , from a point that is in the line but not in the middle of it ? The figure formed by two radii and an arc is called a sector . When a circle is divided into four equal sec- tors , each of such sectors ...
Página 44
... perpendicular 6 ? In a right - angled triangle , the side which faces the right angle is called the hypothen use . 145. Can you make a right - angled triangle , whose base shall be 4 and hypothenuse 6 ? 146. Can you make a rectangle ...
... perpendicular 6 ? In a right - angled triangle , the side which faces the right angle is called the hypothen use . 145. Can you make a right - angled triangle , whose base shall be 4 and hypothenuse 6 ? 146. Can you make a rectangle ...
Página 51
... perpendicular to a line from a point given above that line ? Those instruments by which an angle can be constructed so as to contain a certain number of degrees , or by which we can measure an angle , and determine how many degrees it ...
... perpendicular to a line from a point given above that line ? Those instruments by which an angle can be constructed so as to contain a certain number of degrees , or by which we can measure an angle , and determine how many degrees it ...
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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.