The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh and Twelfth : the Errors by which Theon, Or Others, Have Long Ago Vitiated These Books are Corrected, and Some of Euclid's Demonstrations are Restored : Also, the Book of Euclid's Data, in Like Manner Corrected : to this Edition are Also Annexed, Elements of Plane and Spherical TrigonometryRobert Desilver, 1821 - 516 páginas |
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Página 195
... pyramid is a solid figure contained by planes that are consti- tuted betwixt one plane and one point above it in which they meet . XIII . A prism is a solid figure contained by plane figures , of which two that are opposite are equal ...
... pyramid is a solid figure contained by planes that are consti- tuted betwixt one plane and one point above it in which they meet . XIII . A prism is a solid figure contained by plane figures , of which two that are opposite are equal ...
Página 255
... pyramid having a triangular base , may be di- vided into two equal and similar pyramids having triangu- lar bases , and which are similar to the whole pyramid ; and into two equal prisms which together are greater than half of the whole ...
... pyramid having a triangular base , may be di- vided into two equal and similar pyramids having triangu- lar bases , and which are similar to the whole pyramid ; and into two equal prisms which together are greater than half of the whole ...
Página 256
... pyramid of which the base is the triangle AEG , and of which the vertex is the point H , is equal ( C. 11. ) and similar to the pyramid the base of which is the triangle KHL , and vertex the point D : and because HK is parallel to AB a ...
... pyramid of which the base is the triangle AEG , and of which the vertex is the point H , is equal ( C. 11. ) and similar to the pyramid the base of which is the triangle KHL , and vertex the point D : and because HK is parallel to AB a ...
Página 257
... pyramid is equal ( C. 11. ) to the pyramid the base of which is the triangle AEG , and vertex the point_H ; because they are contained by equal and similar planes : wherefore the prism having the parallelogram EBFG for its base , and ...
... pyramid is equal ( C. 11. ) to the pyramid the base of which is the triangle AEG , and vertex the point_H ; because they are contained by equal and similar planes : wherefore the prism having the parallelogram EBFG for its base , and ...
Página 258
... pyramids of the same altitude , upon triangular bases , and each of them be divided into two equal pyramids similar to the whole pyramid , and also in- to two equal prisms ; and if each of these pyramids be di- vided in the same manner ...
... pyramids of the same altitude , upon triangular bases , and each of them be divided into two equal pyramids similar to the whole pyramid , and also in- to two equal prisms ; and if each of these pyramids be di- vided in the same manner ...
Otras ediciones - Ver todas
The Elements of Euclid: Viz, the First Six Books, Together with the Eleventh ... Robert Simson,Euclid Euclid Sin vista previa disponible - 2018 |
Términos y frases comunes
AC is equal altitude angle ABC angle BAC base BC BC is given bisected centre circle ABCD circumference cone cylinder demonstrated described diameter draw drawn equal angles equiangular equimultiples Euclid ex æquali excess fore given angle given in magnitude given in position given in species given magnitude given ratio given straight line gnomon greater join less Let ABC meet multiple parallel parallelogram perpendicular point F polygon prism proportionals proposition pyramid Q. E. D. PROP radius ratio of AE rectangle CB rectangle contained rectilineal figure remaining angle right angles segment side BC similar solid angle solid parallelopipeds sphere spherical angle square of AC straight line AB straight line BC tangent THEOR third triangle ABC vertex wherefore
Pasajes populares
Página 11 - Let it be granted that a straight line may be drawn from any one point to any other point.
Página 155 - IF a straight line be drawn parallel to one of the sides of a triangle, it shall cut the other sides, or those produced, proportionally; and if the sides, or the sides produced, be cut proportionally, the straight line which joins the points of section shall be parallel to the remaining side of the triangle...
Página 329 - Equiangular parallelograms have to one another the ratio which is compounded of the ratios of their sides.
Página 20 - To draw a straight line at right angles to a given straight line, from a given point in the same.
Página 9 - 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 55 - If a straight line be divided into any two parts, four times the rectangle contained by the whole line, and one of the parts, together with the square of the other part, is equal to the square of the straight line which is made up of the whole and that part.
Página 53 - If a straight line be divided into two equal parts, and also into two unequal parts; the rectangle contained by the unequal parts, together with the square of the line between the points of section, is equal to the square of half the line.
Página 318 - Again ; the mathematical postulate, that " things which are equal to the same are equal to one another," is similar to the form of the syllogism in logic, which unites things agreeing in the middle term.
Página 21 - The angles which one straight line makes with another upon one tide of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it the angles CBA, ABD ; these are either two right angles, or are together equal to two right angles. For, if the angle CBA be equal to ABD, each of them is a right angle (Def.
Página 27 - To construct a triangle of which the sides shall be equal to three given straight lines ; but any two whatever of these lines must be greater than the third (20.