Lessons on Form: Or, An Introduction to Geometry, as Given in a Pestalozzian School, Cheam, SurreyTaylor and Walton, 1837 - 215 sider |
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Side 6
... P. - Either a straight and a curved line , or two curved lines . M. - Which face have you placed next in succession to the triangle ? P ... angle . How many angles are 6 LESSONS ON FORM , BEING.
... P. - Either a straight and a curved line , or two curved lines . M. - Which face have you placed next in succession to the triangle ? P ... angle . How many angles are 6 LESSONS ON FORM , BEING.
Side 7
... angle . How many angles are in a three - sided figure ? P. - Three angles . M. - See how many angles there are in each of the figures on your slates . P. - A four - sided figure has four angles ; a five - sided , five ; a six - sided ...
... angle . How many angles are in a three - sided figure ? P. - Three angles . M. - See how many angles there are in each of the figures on your slates . P. - A four - sided figure has four angles ; a five - sided , five ; a six - sided ...
Side 9
... angle ? Try , one - two - three . P. - Three at least . M. — Instead of " corners , " say solid angles ; how are the edges formed ? P. - By the meeting of two faces . DESCRIPTION OF THE FIVE REGULAR SOLIDS . * M. - Which of these five ...
... angle ? Try , one - two - three . P. - Three at least . M. — Instead of " corners , " say solid angles ; how are the edges formed ? P. - By the meeting of two faces . DESCRIPTION OF THE FIVE REGULAR SOLIDS . * M. - Which of these five ...
Side 10
... P.- Six edges ; because there are six twos in twelve . M. - Now take the solid , examine it , and see whe- ther it is so . How many angles are there about each corner or solid angle ? It is important that the pupils be convinced by ...
... P.- Six edges ; because there are six twos in twelve . M. - Now take the solid , examine it , and see whe- ther it is so . How many angles are there about each corner or solid angle ? It is important that the pupils be convinced by ...
Side 12
... P. - Equiangular triangle . M. - What are the faces of this solid ( showing the octahedron ) ? By how many such faces is it bound- How many plane angles are there about each ed ? solid angle ? P. It is bounded by eight plane equilateral ...
... P. - Equiangular triangle . M. - What are the faces of this solid ( showing the octahedron ) ? By how many such faces is it bound- How many plane angles are there about each ed ? solid angle ? P. It is bounded by eight plane equilateral ...
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Lessons on Form: Or, An Introduction to Geometry, as Given in a Pestalozzian ... Charles Reiner Uten tilgangsbegrensning - 1837 |
Lessons on Form: Or, An Introduction to Geometry, as Given in a Pestalozzian ... Charles Reiner Uten tilgangsbegrensning - 1837 |
Vanlige uttrykk og setninger
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
Populære avsnitt
Side 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.
Side 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...
Side 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.
Side 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.