Lessons on Form: Or, An Introduction to Geometry, as Given in a Pestalozzian School, Cheam, SurreyTaylor and Walton, 1837 - 215 Seiten |
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Seite 2
... what word will you describe it ? P. - Thickness . M. - Name an object of which it would be proper to say depth instead of thickness . P. - A well extends in length , in breadth , and in depth : so does the sea , a pond , a lake , a river .
... what word will you describe it ? P. - Thickness . M. - Name an object of which it would be proper to say depth instead of thickness . P. - A well extends in length , in breadth , and in depth : so does the sea , a pond , a lake , a river .
Seite 3
... which bound it . M. - If we wish to distinguish one of these several surfaces from the total number of surfaces , it is usual to call it one of its faces . Now state what may be said in general of the number of faces by which all ...
... which bound it . M. - If we wish to distinguish one of these several surfaces from the total number of surfaces , it is usual to call it one of its faces . Now state what may be said in general of the number of faces by which all ...
Seite 5
... M. - We will now first examine those solids which are bounded by plane faces only . See in what respect their faces differ . P. - In size , in shape , and in the number of straight lines which bound them . M. - Speaking of the ...
... M. - We will now first examine those solids which are bounded by plane faces only . See in what respect their faces differ . P. - In size , in shape , and in the number of straight lines which bound them . M. - Speaking of the ...
Seite 6
... M. - Which face have you placed next in succession to the triangle ? P. - One which is bounded by four sides . M. - Imitate it on your slates . Which of the faces come next ? P. - The five - sided face ; then the six , seven , and eight ...
... M. - Which face have you placed next in succession to the triangle ? P. - One which is bounded by four sides . M. - Imitate it on your slates . Which of the faces come next ? P. - The five - sided face ; then the six , seven , and eight ...
Seite 8
... which are bounded by many sides , they are called polygons , ( from the Greek woλus many , and ywvía , angle ) . As before , the pupils are called upon to reproduce the lesson ... M. What other parts do you discover 8 LESSONS ON FORM , BEING.
... which are bounded by many sides , they are called polygons , ( from the Greek woλus many , and ywvía , angle ) . As before , the pupils are called upon to reproduce the lesson ... M. What other parts do you discover 8 LESSONS ON FORM , BEING.
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Häufige Begriffe und Wortgruppen
a b and c d a c b a c d acute angles adjacent angle alternate angles angle a b c angle contained angles are equal angles equal base called centre chords circumference cut the circle demonstration diameter dodecahedron edges equal angles equal sides equilateral exterior angle greater inscribed interior and opposite isosceles triangle LESSON likewise lines a b lines be drawn M.-Compare M.-Demonstrate M.-Draw M.-Express M.-Hence M.-What M.-When obtuse angle octahedron opposite angles P.-Because P.-The angle parallelogram pentagon perpendicular plane angles plane faces point of contact pupils pyramid quadrilateral figure rectangle contained rhomb right angles semi-circumference similar triangles slates solid angles sphere square straight line joining tangent third side three angles trapezium triangle a b c triangles are equal truth twice the rectangle unequal whole line
Beliebte Passagen
Seite 98 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Seite 134 - In obtuse-angled triangles, if a perpendicular be drawn from either of the acute angles to the opposite side produced, the square on the side subtending the obtuse angle, is greater than the squares on the sides containing the obtuse angle, by twice the rectangle contained by the side...
Seite 137 - In every triangle, the square of the side subtending either of the acute angles is less than the squares of the sides containing that angle, by twice the rectangle contained by either of these sides, and the straight line intercepted between the perpendicular let fall upon it from the opposite angle, and the acute angle.
Seite 219 - A very convenient class-book for junior students in' private schools. It is intended to convey, in clear and precise terms, general notions of all the principal divisions of Physical Science.