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 191
... point is , first , assumed without the circle , from which straight lines are drawn so as to intersect the circle . Next , one tangent is drawn , and the angles , which a diameter , drawn to the point of contact , makes with it are ...
... point is , first , assumed without the circle , from which straight lines are drawn so as to intersect the circle . Next , one tangent is drawn , and the angles , which a diameter , drawn to the point of contact , makes with it are ...
Side 195
... point of contact . From the point of contact draw a straight line so as to cut the circle , and determine the angles it makes with a tangent . P. - A straight line from the point of contact either passes through the centre of the circle ...
... point of contact . From the point of contact draw a straight line so as to cut the circle , and determine the angles it makes with a tangent . P. - A straight line from the point of contact either passes through the centre of the circle ...
Side 196
... point only ; and the straight line from the centre to the point of contact is at right angles to the tangent . M. - If , then , the angle which a straight line from the centre makes with another line meeting the cir- cle is not a right ...
... point only ; and the straight line from the centre to the point of contact is at right angles to the tangent . M. - If , then , the angle which a straight line from the centre makes with another line meeting the cir- cle is not a right ...
Side 197
... point of contact , and de a straight line , not passing through the centre c : Ledb upon the arc dge , anded a △ upon the arc dƒ e . Draw def , and join fe ; in the arc de take any point , g , and join dg , ge ; fdb is a rt . . But def ...
... point of contact , and de a straight line , not passing through the centre c : Ledb upon the arc dge , anded a △ upon the arc dƒ e . Draw def , and join fe ; in the arc de take any point , g , and join dg , ge ; fdb is a rt . . But def ...
Side 198
... point of contact , a straight line be drawn so as to cut the circle , the angles which this line makes with the tangent are equal to the angles upon the adjacent arcs . M. - You said that , a straight line from the point of contact ...
... point of contact , a straight line be drawn so as to cut the circle , the angles which this line makes with the tangent are equal to the angles upon the adjacent arcs . M. - You said that , a straight line from the point of contact ...
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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.