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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Resultat 1-5 av 27
Side 6
... meet ? P. - In three points . M .- ( Draws a triangle upon the school - slate ) . a I will put the letters a , b , c at the three points , in order that we may be able to distinguish one side from the others . By what word will you ...
... meet ? P. - In three points . M .- ( Draws a triangle upon the school - slate ) . a I will put the letters a , b , c at the three points , in order that we may be able to distinguish one side from the others . By what word will you ...
Side 8
... meet in a point . 5. - A trilateral face has three angles , it is therefore called a triangle ; a quadrilateral has four angles ; a pentagon has five , a hexagon six , a heptagon seven , an octagon eight ; a polygon has as many angles ...
... meet in a point . 5. - A trilateral face has three angles , it is therefore called a triangle ; a quadrilateral has four angles ; a pentagon has five , a hexagon six , a heptagon seven , an octagon eight ; a polygon has as many angles ...
Side 23
... meet in one point , which is opposite the base of the pyramid . M. - That point is called the summit of the py- ramid . What is the number of triangular faces ? P. - There are as many triangular faces as the base has sides . M. — What ...
... meet in one point , which is opposite the base of the pyramid . M. - That point is called the summit of the py- ramid . What is the number of triangular faces ? P. - There are as many triangular faces as the base has sides . M. — What ...
Side 36
... meet . M - Straight lines which , when produced ever so far both ways , never meet , are called parallel lines . Παράλληλος , from παρά , beside , and αλλήλων , each other . What will happen if eƒ and g h be produced both ways ? P ...
... meet . M - Straight lines which , when produced ever so far both ways , never meet , are called parallel lines . Παράλληλος , from παρά , beside , and αλλήλων , each other . What will happen if eƒ and g h be produced both ways ? P ...
Side 37
... meet is called the vertex of the angle ; the lines themselves are called the legs of the angle . An angle is usually ex- pressed by putting a letter at the extremity of each leg , and at the vertex ; and , in naming the angle , the ...
... meet is called the vertex of the angle ; the lines themselves are called the legs of the angle . An angle is usually ex- pressed by putting a letter at the extremity of each leg , and at the vertex ; and , in naming the angle , the ...
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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.