The school Euclid: comprising the first four books, by A.K. Isbister1862 |
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Resultados 1-5 de 33
Página 55
... square upon a given straight line . ( References - Prop . 1. 3 , 11 , 29 , 31 , 34 ; ax . 1 , 3 ; def . 30. ) Let AB be the given straight line . It is required to describe a square upon AB . C D E A B CONSTRUCTION From the point A draw AC ...
... square upon a given straight line . ( References - Prop . 1. 3 , 11 , 29 , 31 , 34 ; ax . 1 , 3 ; def . 30. ) Let AB be the given straight line . It is required to describe a square upon AB . C D E A B CONSTRUCTION From the point A draw AC ...
Página 56
... square , and it is described upon the given straight line AB . Q. E. F. Cor . Hence every parallelogram that has one ... AC . G F D L H K CONSTRUCTION On BC describe the square BDEC , ( 1. 46 ) and on BA , AC , the squares GB , HC ...
... square , and it is described upon the given straight line AB . Q. E. F. Cor . Hence every parallelogram that has one ... AC . G F D L H K CONSTRUCTION On BC describe the square BDEC , ( 1. 46 ) and on BA , AC , the squares GB , HC ...
Página 57
... square GB and the triangle FBC are upon the same base FB , and between the same parallels FB , GC ; therefore the ... AC ; wherefore the square upon the side BC , is equal to the squares upon the sides BA , AC . Therefore , in any right ...
... square GB and the triangle FBC are upon the same base FB , and between the same parallels FB , GC ; therefore the ... AC ; wherefore the square upon the side BC , is equal to the squares upon the sides BA , AC . Therefore , in any right ...
Página 58
... square of DA is equal to the square of AB ; to each of these equals add the square of AC , therefore the squares of DA , AC , are equal to the squares of BA , AC ; ( ax . 2 ) but because DAC is a right angle , ( constr . ) herefore the ...
... square of DA is equal to the square of AB ; to each of these equals add the square of AC , therefore the squares of DA , AC , are equal to the squares of BA , AC ; ( ax . 2 ) but because DAC is a right angle , ( constr . ) herefore the ...
Página 61
... square of AB . A C B D F E CONSTRUCTION Upon AB describe the square ADEB , ( 1. 46 ) and through C draw CF parallel ... AC , of which AD is equal to AB , ( def . 30 ) therefore AF is the rectangle contained by AB , AC ; and CE is ...
... square of AB . A C B D F E CONSTRUCTION Upon AB describe the square ADEB , ( 1. 46 ) and through C draw CF parallel ... AC , of which AD is equal to AB , ( def . 30 ) therefore AF is the rectangle contained by AB , AC ; and CE is ...
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The School Euclid: Comprising the First Four Books, Chiefly from the Text of ... A. K. Isbister Sin vista previa disponible - 2009 |
Términos y frases comunes
AB is equal adjacent angles alternate angles angle ABC angle AGH angle BAC angle BCD angle EAB angle EDF angle equal angles CBA base BC BC is equal circle ABC constr DEMONSTRATION describe the circle diameter double equal angles equal straight lines equal to BC equilateral and equiangular exterior angle given circle given rectilineal angle given straight line gnomon greater inscribed interior and opposite less Let ABC Let the straight opposite angles parallel to CD parallelogram pentagon perpendicular Q. E. D. PROP rectangle AE rectangle contained rectilineal figure References Prop References-Prop remaining angle required to describe right angles segment semicircle side BC square of AC straight line AB straight line AC THEOREM touches the circle triangle ABC triangle DEF twice the rectangle
Pasajes populares
Página 141 - 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. either the sides adjacent to the equal...
Página 35 - If a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are equal to two right angles.
Página 71 - In obtuse-angled triangles, if a perpendicular be drawn from either of the acute angles to the opposite side produced, the square of the side subtending the obtuse angle, is greater than the squares of the sides containing the obtuse angle, by twice the rectangle contained by the side upon which, when produced, the perpendicular falls, and the straight line intercepted without the triangle, between the perpendicular and the obtuse angle. Let ABC be an obtuse-angled triangle, having the obtuse angle...
Página 33 - That, if a straight line falling on two straight lines make the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which are the angles less than the two right angles.
Página 61 - If a straight line be bisected and produced to any point, the rectangle contained by the whole line thus produced and the part of it produced, together with the square of...
Página 43 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Página 27 - ... shall be greater than the base of the other. Let ABC, DEF be two triangles, which have the two sides AB, AC, equal to the two DE, DF, each to each, viz.
Página 77 - An 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 15 - The angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles.