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 15
... opposite sides may be equal ; the adjacent sides may be equal ; three sides ... angles may be equal ; in the other , the sides ᄆᄆ may be equal , but its angles ... angles right angles , is called a square . AN INTRODUCTION TO GEOMETRY . 15.
... opposite sides may be equal ; the adjacent sides may be equal ; three sides ... angles may be equal ; in the other , the sides ᄆᄆ may be equal , but its angles ... angles right angles , is called a square . AN INTRODUCTION TO GEOMETRY . 15.
Side 16
... angles right angles , is called a square . A quad- rilateral figure having equal sides , but whose angles are not equal , is called a rhomb ( from the Latin rhombus ) . Can you describe two quadrilateral figures having their opposite sides ...
... angles right angles , is called a square . A quad- rilateral figure having equal sides , but whose angles are not equal , is called a rhomb ( from the Latin rhombus ) . Can you describe two quadrilateral figures having their opposite sides ...
Side 17
... adjacent angles equal to one another , each of them is called a right angle . 4. An angle which is greater than a right angle is called an obtuse angle . 5. - An angle which is less than a right angle is called an acute angle . 6. — A ...
... adjacent angles equal to one another , each of them is called a right angle . 4. An angle which is greater than a right angle is called an obtuse angle . 5. - An angle which is less than a right angle is called an acute angle . 6. — A ...
Side 19
... angles are there about each of its solid angles ? P. - About some of its solid angles there are three plane angles ... opposite each other . M. - How many obtuse angles are there in all the faces of the rhomboidal dodecahedron , and how ...
... angles are there about each of its solid angles ? P. - About some of its solid angles there are three plane angles ... opposite each other . M. - How many obtuse angles are there in all the faces of the rhomboidal dodecahedron , and how ...
Side 21
... angles which are opposite to the bases of the isosceles triangles . M. - How many angles are there at each of these bases of the triangles ? P. - Two angles at each base . M. - How may are there of this sort in all the faces ? P ...
... angles which are opposite to the bases of the isosceles triangles . M. - How many angles are there at each of these bases of the triangles ? P. - Two angles at each base . M. - How may are there of this sort in all the faces ? P ...
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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.