# An Introduction to Geometry and the Science of Form: Prepared from the Most Approved Prussian Text-books

James Munroe, 1846 - Geometry - 161 pages
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### Contents

 In what manner the operation is performed 6 Section 18 111 23 Definition of equivalent figures 26 FIGURES 37 150 40 Area of a parallelogram 60 127 61
 100 97 To find the area of a circle 105 parallelopiped 111 224 113 equivalent to the sum of 3 4 5 121 two given points 127 OF PROportions 130 254 136

### Popular passages

Page 130 - The first and fourth terms of a proportion are called the extremes, and the second and third terms, the means. Thus, in the foregoing proportion, 8 and 3 are the extremes and 4 and 6 are the means.
Page 154 - In a series of equal ratios, any antecedent is to its consequent, as the sum of all the antecedents is to the sum of all the consequents. Let a: 6 = c: d = e :/. Then, by Art.