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 35
Side 11
... third unequal ; or the three sides may be unequal . The master desires the pupils to draw such trian- gles upon their slates ; after which , he may describe an equilateral , an isosceles , and a scalene triangle upon the school - slate ...
... third unequal ; or the three sides may be unequal . The master desires the pupils to draw such trian- gles upon their slates ; after which , he may describe an equilateral , an isosceles , and a scalene triangle upon the school - slate ...
Side 38
... third of another right angle ; one acute angle may be half of a right angle , and another acute angle may be one - third of a right angle . M. Draw several equal and unequal obtuse angles . Draw several equal and unequal acute angles ...
... third of another right angle ; one acute angle may be half of a right angle , and another acute angle may be one - third of a right angle . M. Draw several equal and unequal obtuse angles . Draw several equal and unequal acute angles ...
Side 39
... third angle not equal to either . α d P. b f h h g k M. - To each of the equal angles add the angle g hk : what are the sums ? P. The angles a b c and g h k , together , are equal to the angles de ƒ and g h k , together . M. - Express ...
... third angle not equal to either . α d P. b f h h g k M. - To each of the equal angles add the angle g hk : what are the sums ? P. The angles a b c and g h k , together , are equal to the angles de ƒ and g h k , together . M. - Express ...
Side 48
... third unequal . 3rd . All a three may be unequal . f α с a f b с d 4th . They may all three be par- allel . 5th . Two of them may be parallel , a and the third non - parallel . f . e 6th . All three may be non - par- a b allel . f M ...
... third unequal . 3rd . All a three may be unequal . f α с a f b с d 4th . They may all three be par- allel . 5th . Two of them may be parallel , a and the third non - parallel . f . e 6th . All three may be non - par- a b allel . f M ...
Side 50
... third case , can the unequal lines a b , cd , and ef , be so placed that their extremities may coincide ? P. - No ; the lines may coincide , but their extre- mities cannot because a b , c d , and eƒ are unequal . M. - If the line a b be ...
... third case , can the unequal lines a b , cd , and ef , be so placed that their extremities may coincide ? P. - No ; the lines may coincide , but their extre- mities cannot because a b , c d , and eƒ are unequal . M. - If the line a b be ...
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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.