Inventional Geometry: A Series of Problems Intended to Familiarize the Pupil with Geometrical Conceptions, and to Exercise His Inventive FacultyD. Appleton and Company, 1886 - 97 páginas |
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Página 33
... diagonal . 78. Show that each variety of quadrilateral has two diagonals , and say in which kind the diagonals can be of equal lengths , and in which they cannot In geometry , one figure is said to be placed in anotner , when the inner ...
... diagonal . 78. Show that each variety of quadrilateral has two diagonals , and say in which kind the diagonals can be of equal lengths , and in which they cannot In geometry , one figure is said to be placed in anotner , when the inner ...
Página 41
... diagonal shall be twice as long as the short one ? 128. Can you make a regular dodecagon in a circle ? 129. Can you show how many squares may be made to touch at one point ? You recollect that plane figure that has the fewest lines ...
... diagonal shall be twice as long as the short one ? 128. Can you make a regular dodecagon in a circle ? 129. Can you show how many squares may be made to touch at one point ? You recollect that plane figure that has the fewest lines ...
Página 42
... other , and write on each figure its appropriate name . 135. Make two equal and similar rhomboids , and divide one into two equal and similar trian gles by means of one diagonal , and the other 42 INVENTIONAL GEOMETRY .
... other , and write on each figure its appropriate name . 135. Make two equal and similar rhomboids , and divide one into two equal and similar trian gles by means of one diagonal , and the other 42 INVENTIONAL GEOMETRY .
Página 43
... diagonal , and the other into two equal and similar triangles by means of the other diagonal . 136. Can you make two triangles that shall be equal to each other , and yet not similar ? 137. Can you show that all triangles upon the same ...
... diagonal , and the other into two equal and similar triangles by means of the other diagonal . 136. Can you make two triangles that shall be equal to each other , and yet not similar ? 137. Can you show that all triangles upon the same ...
Página 44
... diagonal 6 ? 147. Divide a rectangle several ways into four equal and similar figures , and write upon each figure its proper name . the top , The term vertex means the crown , the zenith ; and yet the angle of an isosceles tri- angle ...
... diagonal 6 ? 147. Divide a rectangle several ways into four equal and similar figures , and write upon each figure its proper name . the top , The term vertex means the crown , the zenith ; and yet the angle of an isosceles tri- angle ...
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adjacent angles angular points APPLETON arc is called arithmetic arithmetic mean arrange the surfaces axis BALFOUR STEWART base Book-Keeping boundaries breadth card a hollow circumference construct cube curve diameter dimensions divide a circle divide a line divide an equilateral dodecagon Double-Entry Book-Keeping duodecimals ellipse equal and similar equal sectors equilateral triangle find the area four equal FRANKLIN TAYLOR Geology geometry Give a plan give a sketch gles HERBERT SPENCER hexahedron icosahedron Illustrations Inventional Geometry isosceles triangle length line drawn line of chords line of sines line of tangents means nonagon number of degrees obtuse angle octahedron orthoëpists pentagon piece of card place a circle place a hexagon place a square polygon Prof protractor pupil pyramid quadrant quadrilaterals radii radius rectangle reëntrant angle rhomboid rhombus right-angled triangle Science Primer secant sides is called solid square inches square yard takes the name tetrahedron trapezium versed sine write its name zoid