# The Elements of Plane and Solid Geometry: With Chapters on Mensuration and Modern Geometry (Google eBook)

Porter & Coates, 1882 - Geometry - 266 pages

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### Contents

 Introduction 7 BOOK II 51 BOOK III 63 BOOK 91 BOOK V 101 BOOK VI 131 MENSURATION OF PLANE SURFACES 147 SOLID GEOMETRY 153
 BOOK VIII 170 BOOK IX 197 MENSURATION OF SOLIDS 220 PART III 233 SECTION III 239 SECTION 249 SECTION VII 257

### Popular passages

Page 54 - If a straight line be divided into any two parts, the square of the whole line is equal to the squares of the two parts, together with twice the rectangle contained by the parts.
Page 75 - The angles in the same segment of a circle are equal to one another.
Page 79 - If a straight line touch a circle, and from the point of contact a...
Page 128 - Wherefore, in equal circles &c. QED PROPOSITION B. THEOREM If the vertical angle of a triangle be bisected by a straight line which likewise cuts the base, the rectangle contained by the sides of the triangle is equal to the...
Page 15 - AXIOMS. 1. Things which are equal to the same thing are equal to one another. 2. If equals be added to equals the wholes are equal. 3. If equals be taken from equals the remainders are equal.
Page 108 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Page 62 - If a straight line be divided into two equal, and also into two unequal parts ; the squares on the two unequal parts are together double of the square on half the line, and of the square on the line between the points of section.
Page 166 - A be a solid angle contained by any number of plane angles BAC, CAD, DAE, EAF, FAB: these together are less than four right angles. Let the planes...
Page 15 - LET it be granted that a straight line may be drawn from any one point to any other point. 2. That a terminated straight line may be produced to any length in a straight line.
Page 127 - If from the vertical angle of a triangle a straight line be drawn perpendicular to the base, the rectangle contained by the sides of the triangle is equal to the rectangle contained by the perpendicular and the diameter of the circle described about the...