Inventional Geometry: A Series of Problems, Intended to Familiarize the Pupil with Geometrical Conceptions, and to Exercise His Inventive FacultyD. Appleton, 1876 - 97 páginas |
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Página 34
... means many - angled ; and when a polygon has all its sides equal , and all its angles equal , it is called a regular polygon . A polygon that has five sides is called a pen tagon . 1 Rectangles are sometimes called oblongs , and ...
... means many - angled ; and when a polygon has all its sides equal , and all its angles equal , it is called a regular polygon . A polygon that has five sides is called a pen tagon . 1 Rectangles are sometimes called oblongs , and ...
Página 42
... similar to each 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 .
... similar to each 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
... means of one 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 ...
... means of one 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 ...
Página 44
... means the crown , the top , the zenith ; and yet the angle of an isosceles tri angle which is contained by the equal sides is called the vertical angle , however such triangle may be placed ; and the side opposite to suc angle is still ...
... means the crown , the top , the zenith ; and yet the angle of an isosceles tri angle which is contained by the equal sides is called the vertical angle , however such triangle may be placed ; and the side opposite to suc angle is still ...
Página 54
... means of a protractor ? 215. Can you , by means of a protractor , make a pentagon without using a circle at all ? It has already been said that the chord of an arc is a line joining the extremities of that arc . 216. With the assistance ...
... means of a protractor ? 215. Can you , by means of a protractor , make a pentagon without using a circle at all ? It has already been said that the chord of an arc is a line joining the extremities of that arc . 216. With the assistance ...
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Términos y frases comunes
adjacent angles AMERICAN BOOK COMPANY angular points arc is called arithmetic mean arrange the surfaces axis base boundaries breadth card a hollow circumference construct cube curve determine diagonal scale diameter dimensions distance divide a circle divide a line divide an equilateral dodecagon duodecimals ellipse English equal and similar equal sectors equilateral triangle essays find the area four equal geometry Give a plan give a sketch Give an example gles hexahedron icosahedron isosceles triangle length line drawn line of chords line of sines line of tangents means nonagon number of degrees obtuse angle octagon octahedron pentagon piece of card place a circle place a hexagon place a square polygon protractor pupil pyramid quadrant quadrilaterals radii radius rectangle reëntrant angle rhomboid rhombus right angle right-angled triangle secant sides is called solid square inches square yard student takes the name tetrahedron trapezium versed sine Wellesley College write its name zoid
Pasajes populares
Página 43 - TRIANGLES upon the same base, and between the same parallels, are equal to one another.
Página 13 - I keep the subject constantly before me, and wait till the first dawnings open slowly by little and little into a full and clear light.
Página 5 - INTRODUCTION. it is considered that by geometry the architect constructs our buildings, the civil engineer our railways; that by a higher kind of geometry, the surveyor makes a map of a county or of a kingdom; that a geometry still higher is the foundation of the noble science of...