Hva folk mener - Skriv en omtale
Vi har ikke funnet noen omtaler på noen av de vanlige stedene.
Andre utgaver - Vis alle
Lessons on Form: Or, An Introduction to Geometry, as Given in a Pestalozzian ...
Uten tilgangsbegrensning - 1837
acute angles added adjacent alternate base bisect bounded called centre chords circle circumference common concluded curved demonstration describe diagonal diameter discover double draw drawn edges eight equal equal angles equilateral exterior angle extremities faces fall figure four given greater Hence inscribed interior isosceles join known less LESSON likewise lines a b M.—What manner master meet object observe obtuse angle opposite angles P.-The angles P.-They parallel parallel lines parallelogram passes perpendicular plane angles point of contact preceding produced pupils pyramid quadrilateral figure rectangle rectangle contained relation remaining respecting result rhomb right angles sides similar slates solid angles sphere square straight line subtending surface tangent third triangle triangle abc truth twice the rectangle unequal writing
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.