Lessons on Form: Or, An Introduction to Geometry, as Given in a Pestalozzian School, Cheam, SurreyTaylor and Walton, 1837 - 215 sider |
Inni boken
Resultat 1-5 av 9
Side 5
... writing it out on their slates . 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 ...
... writing it out on their slates . 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 ...
Side 43
... ( writing . ) samc and c m b = 2 rt . ≤ s . Name two other angles which are also equal to two right angles , and let a m c be one of them . P. - The angles a m c and a m d . M. ( writing . ) same and am d , also , 2 rt . Zs : hence , the ...
... ( writing . ) samc and c m b = 2 rt . ≤ s . Name two other angles which are also equal to two right angles , and let a m c be one of them . P. - The angles a m c and a m d . M. ( writing . ) same and am d , also , 2 rt . Zs : hence , the ...
Side 49
... writing , " a b together with c d is equal to a b together with ef , " we shall make use of a sign for the words " together with , " — thus : a b + c d = a b + ef . In the second case , if the lines a b , c d , e f be placed so that ...
... writing , " a b together with c d is equal to a b together with ef , " we shall make use of a sign for the words " together with , " — thus : a b + c d = a b + ef . In the second case , if the lines a b , c d , e f be placed so that ...
Side 66
... writing , what we have just said . P. - From the point c of the triangle a b c draw the line c d paral- lel to a b ; b C then , because a b and c d are parallel , the bac altern . a c d , To each of these angles adds , a cb + a b c ...
... writing , what we have just said . P. - From the point c of the triangle a b c draw the line c d paral- lel to a b ; b C then , because a b and c d are parallel , the bac altern . a c d , To each of these angles adds , a cb + a b c ...
Side 90
... writing it down as the pupil proceeds . Thus : a d e b ( Pupil dictating , and the master writing . ) Produce bd to e ; then , ba + ae being > be , add ec to each of these unequals- : .ba + ac > be + ec . Also , de ec being > dc , add ...
... writing it down as the pupil proceeds . Thus : a d e b ( Pupil dictating , and the master writing . ) Produce bd to e ; then , ba + ae being > be , add ec to each of these unequals- : .ba + ac > be + ec . Also , de ec being > dc , add ...
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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.