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 35
... octagon . A polygon that has nine sides is called a nonagon . A polygon that has ten sides is called a dec- agon . A polygon that has eleven sides is called an undecagon . A polygon that has twelve sides is called a dodecagon . You have ...
... octagon . A polygon that has nine sides is called a nonagon . A polygon that has ten sides is called a dec- agon . A polygon that has eleven sides is called an undecagon . A polygon that has twelve sides is called a dodecagon . You have ...
Página 36
... and underneath state the number of degrees that the angle of an octant contains . 97. Make a regular octagon in a circle . That point in a square which is equally dis tant from the sides of that square , and also 36 INVENTIONAL GEOMETRY .
... and underneath state the number of degrees that the angle of an octant contains . 97. Make a regular octagon in a circle . That point in a square which is equally dis tant from the sides of that square , and also 36 INVENTIONAL GEOMETRY .
Página 39
... octagon may touch vertically one angle of the other ? You have divided a line into two equal parts . 114. Can you divide a line into four equal parts ? 115. Make a scale of inches , and with its assistance make a rectangle whose length ...
... octagon may touch vertically one angle of the other ? You have divided a line into two equal parts . 114. Can you divide a line into four equal parts ? 115. Make a scale of inches , and with its assistance make a rectangle whose length ...
Página 41
... octagon may coincide with one side of the other ? You have divided a sector into two equal sectors , and an angle into two equal angles . 126. Can you divide a sector into four equal sectors , and an angle into four equal angles ? 127 ...
... octagon may coincide with one side of the other ? You have divided a sector into two equal sectors , and an angle into two equal angles . 126. Can you divide a sector into four equal sectors , and an angle into four equal angles ? 127 ...
Página 48
... octagon , with one side given ? 172. Is it possible that any triangle can be of such a form that , when divided in a certain way into two parts equal to each other , such parts shall have a form similar to that of the original triangle ...
... octagon , with one side given ? 172. Is it possible that any triangle can be of such a form that , when divided in a certain way into two parts equal to each other , such parts shall have a form similar to that of the original triangle ...
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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.