Orr's Circle of the Sciences: Organic nature, vols. 1-3 (1854-1856)William Somerville Orr W.S. Orr and Company, 1854 |
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Página viii
... Rectangle Of a Trapezoid 371 € 371 372 373 • 374 , 375 376 377 Sines and Ratios The Use of the Negative Sign to denote Position Extension of the Definitions of Angles and Trigonometrical Ratios 298 , 300 On the Magnitudes of the Trigo ...
... Rectangle Of a Trapezoid 371 € 371 372 373 • 374 , 375 376 377 Sines and Ratios The Use of the Negative Sign to denote Position Extension of the Definitions of Angles and Trigonometrical Ratios 298 , 300 On the Magnitudes of the Trigo ...
Página 46
... rectangle is that which has all its four angles right angles , whether its sides be equal or not . XXVIII . A rhombus is that which has all its sides equal , but its angles are not right angles . XXIX . A rhomboid is that which has its ...
... rectangle is that which has all its four angles right angles , whether its sides be equal or not . XXVIII . A rhombus is that which has all its sides equal , but its angles are not right angles . XXIX . A rhomboid is that which has its ...
Página 47
... rectangles , rhombuses , and rhomboids , are all parallelograms . XXXII . All other four - sided figures , besides those here defined , are called trapeziums . XXXIII . A line drawn across a figure , joining two opposite corners , or ...
... rectangles , rhombuses , and rhomboids , are all parallelograms . XXXII . All other four - sided figures , besides those here defined , are called trapeziums . XXXIII . A line drawn across a figure , joining two opposite corners , or ...
Página 86
... rectangle AB BC ; " or " the rectangle A D · D C. ” And when the adjacent sides are made equal to two detached lines , each to each , it is common to refer to the rectangle as contained by the lines to which the adjacent sides have been ...
... rectangle AB BC ; " or " the rectangle A D · D C. ” And when the adjacent sides are made equal to two detached lines , each to each , it is common to refer to the rectangle as contained by the lines to which the adjacent sides have been ...
Página 87
... rectangle contained by the two straight lines is equal to the rectangles contained by the undivided line and the several parts ( BD , DE , & c . ) of the divided line . * 11 I. + 3 I. * 31 I. * B D E C From B draw BF at right angles to ...
... rectangle contained by the two straight lines is equal to the rectangles contained by the undivided line and the several parts ( BD , DE , & c . ) of the divided line . * 11 I. + 3 I. * 31 I. * B D E C From B draw BF at right angles to ...
Términos y frases comunes
ABCD Algebra arithmetic base Binomial Theorem bisect calculation called centre chord circumference coefficient common Completing the square contained cotan decimals denominator describe diameter divided dividend divisor draw ellipse equal angles equation equiangular equilateral Euclid EXAMPLES FOR EXERCISE expression exterior angle factors figure formula fraction frustum geometrical progression geometry given straight line greater h₂ Hence inscribed intersecting join latter less logarithm magnitudes manner measure multiplied operation parallel parallelogram perpendicular plane polygon prism Prop proportion proved Q. E. D. PROPOSITION quantity quotient radius ratio rectangle remainder result right angles rule sides sines solid angle sphere square root subtract suppose theorem third triangle ABC trigonometrical
Pasajes populares
Página 86 - If two triangles have two sides of the one equal to two sides of the...
Página 60 - If a straight line meets two straight lines, so as to make the two interior angles on the same side of it taken together less than two right angles...
Página 58 - ... equal angles in each ; then shall the other sides be equal each to each : and also the third angle of the one to the third angle of the other.
Página 45 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Página 190 - Divide the first term of the dividend by the first term of the divisor, and write the result as the first term of the quotient. Multiply the whole divisor by the first term of the quotient, and subtract the product from the dividend.
Página 47 - Let it be granted that a straight line may be drawn from any one point to any other point.
Página 151 - Equal parallelograms which have one angle of the one equal to one angle of the other, have their sides about the equal angles reciprocally proportional ; and parallelograms that have one angle of the one equal to one angle of the other, and their sides about the equal angles reciprocally proportional, are equal to one another.
Página 96 - angle in a segment' is the angle contained by two straight lines drawn from any point in the circumference of the segment, to the extremities of the straight line which is the base of the segment.
Página 46 - A rhombus, is that which has all its sides equal, but its angles are not right angles.
Página 66 - From this it is manifest how to a given straight line to apply a parallelogram, which shall have an angle equal to a given rectilineal angle, and shall be equal to a given rectilineal figure, viz.