Lessons on Form: Or, An Introduction to Geometry, as Given in a Pestalozzian School, Cheam, SurreyTaylor and Walton, 1837 - 215 páginas |
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Página vii
... relation to the science , it is not , viewed pædagogically , an elemen- tary work . It is fitted for the matured , and not for the opening mind . The judicious teacher will desire to present to his pupils the subject matter of Euclid in ...
... relation to the science , it is not , viewed pædagogically , an elemen- tary work . It is fitted for the matured , and not for the opening mind . The judicious teacher will desire to present to his pupils the subject matter of Euclid in ...
Página 89
... relation between b a and b d ? P. - We must join the points a and d . M. - Do this , and see if it will assist you . The pupils will find that it cannot assist them , be- cause the point d is not determined . M. - And , if you wish to ...
... relation between b a and b d ? P. - We must join the points a and d . M. - Do this , and see if it will assist you . The pupils will find that it cannot assist them , be- cause the point d is not determined . M. - And , if you wish to ...
Página 100
... relation between the sides of paral- lelograms being known , you may be able to discover another try . P. - The opposite sides must be equal . M. - Demonstrate this . C P. Let ab de be a parallelogram , its opposite sides shall be equal ...
... relation between the sides of paral- lelograms being known , you may be able to discover another try . P. - The opposite sides must be equal . M. - Demonstrate this . C P. Let ab de be a parallelogram , its opposite sides shall be equal ...
Página 111
... relation of the sides or angles be known . M. - There is a particular case of a trapezium- A quadrilateral figure having three interior and one exterior angle . Endeavour to describe such a figure ; and , then , state what you can ...
... relation of the sides or angles be known . M. - There is a particular case of a trapezium- A quadrilateral figure having three interior and one exterior angle . Endeavour to describe such a figure ; and , then , state what you can ...
Página 124
... relation has a triangle to a parallelogram which is upon the same base and between the same parallels ? P. If a triangle and a parallelogram are upon the same base and between the same parallels , the triangle is one half of the ...
... relation has a triangle to a parallelogram which is upon the same base and between the same parallels ? P. If a triangle and a parallelogram are upon the same base and between the same parallels , the triangle is one half of the ...
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Términos y frases comunes
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
Pasajes populares
Página 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.
Página 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...
Página 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.
Página 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.