Elements of Geometry: Containing the First Six Books of Euclid, with a Supplement on the Quadrature of the Circle and the Geometry of Solids ; to which are Added Elements of Plane and Spherical TrigonometryE. Duyckinck, and George Long, 1824 - 333 σελίδες |
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Σελίδα 163
... equilateral , the sides about the equal angles are proportion- als ; the polygon ABCD is therefore similar to the polygon GHIKLM ( def . 1.6 . ) . And because similar polygons are as the squares of their homologous sides ( 20. 6 ...
... equilateral , the sides about the equal angles are proportion- als ; the polygon ABCD is therefore similar to the polygon GHIKLM ( def . 1.6 . ) . And because similar polygons are as the squares of their homologous sides ( 20. 6 ...
Σελίδα 164
... polygon ABCDEF is to the polygon GHIKLM as the square of AD to the square of GK ; and they have also been shewn to be similar . Therefore , & c . Q. E. D. COR . Every equilateral polygon inscribed in a circle is also equi- angular : For ...
... polygon ABCDEF is to the polygon GHIKLM as the square of AD to the square of GK ; and they have also been shewn to be similar . Therefore , & c . Q. E. D. COR . Every equilateral polygon inscribed in a circle is also equi- angular : For ...
Σελίδα 165
... polygon , and equilateral polygon may be described about the circle , the sides of which will each be equal to KL , and will be equal in number to the sides of the inscribed polygon . Therefore , KL is the side of an equilateral ...
... polygon , and equilateral polygon may be described about the circle , the sides of which will each be equal to KL , and will be equal in number to the sides of the inscribed polygon . Therefore , KL is the side of an equilateral ...
Σελίδα 166
... equilateral polygon inscribed in the circle ABC . Wherefore also , HL is the side of an equilateral polygon , of the same number of sides , described about ABC ( 3. 1. Sup . ) . Let the polygon described about the circle be called , M ...
... equilateral polygon inscribed in the circle ABC . Wherefore also , HL is the side of an equilateral polygon , of the same number of sides , described about ABC ( 3. 1. Sup . ) . Let the polygon described about the circle be called , M ...
Σελίδα 167
... polygon M to the difference of the polygons ; therefore , since the square of AC is greater than M , the square of AF is greater than the difference of the polygons ( 14.5 ) ... equilateral polygon inscribed OF GEOMETRY . BOOK I. 167.
... polygon M to the difference of the polygons ; therefore , since the square of AC is greater than M , the square of AF is greater than the difference of the polygons ( 14.5 ) ... equilateral polygon inscribed OF GEOMETRY . BOOK I. 167.
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ABC is equal ABCD altitude angle ABC angle ACB angle BAC angle EDF arch AC base BC bisected centre circle ABC circumference cosine cylinder definition demonstrated diameter draw equal angles equiangular equilateral equilateral polygon equimultiples Euclid exterior angle fore four right angles given straight line greater hypotenuse inscribed join less Let ABC Let the straight line BC magnitudes MDCCCXX meet multiple opposite angle parallel parallelepipeds parallelogram perpendicular polygon prism PROB produced proportionals proposition Q. E. D. COR Q. E. D. PROP radius ratio rectangle contained rectilineal figure remaining angle segment semicircle shewn side BC sine solid angle solid parallelepipeds spherical angle spherical triangle straight line AC THEOR third touches the circle triangle ABC triangle DEF wherefore