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
... adjacent ( from the Latin ad , near , and jacens , lying ) angles . When these adjacent angles are equal , each of them is called a right angle . If these adjacent angles are not equal , what can be said of them ? P. - One is greater ...
... adjacent ( from the Latin ad , near , and jacens , lying ) angles . When these adjacent angles are equal , each of them is called a right angle . If these adjacent angles are not equal , what can be said of them ? P. - One is greater ...
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 40
... adjacent angle a b d ; if the angle a b c is not equal to its adjacent angle a b d , it is not a right angle . M. - How may you ascertain that the angle a b c is greater than a right angle ? P. By drawing from the point b another line ...
... adjacent angle a b d ; if the angle a b c is not equal to its adjacent angle a b d , it is not a right angle . M. - How may you ascertain that the angle a b c is greater than a right angle ? P. By drawing from the point b another line ...
Side 41
... adjacent angles be not right angles , what may be said of the obtuse and the acute angle when compared with one right angle ? P. - The obtuse angle is as much greater than one right angle , as the adjacent angle is less than one ' right ...
... adjacent angles be not right angles , what may be said of the obtuse and the acute angle when compared with one right angle ? P. - The obtuse angle is as much greater than one right angle , as the adjacent angle is less than one ' right ...
Side 42
... adjacent angle ? P. By subtracting the known angle from two right angles . M. - Compare each of the angles a b c and cbd with two right angles . a b C d P. - The angle a b c is equal to two right angles minus [ less ] the angle cb d ...
... adjacent angle ? P. By subtracting the known angle from two right angles . M. - Compare each of the angles a b c and cbd with two right angles . a b C d P. - The angle a b c is equal to two right angles minus [ less ] the angle cb d ...
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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.