The Elements of Geometry: Or, The First Six Books, with the Eleventh and Twelfth, of Euclid |
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Σελίδα 29
Corollary . A quadrilateral which has two of its opposite sides equal and parallel , is a parallelogram . - See the following definition : - DEFINITION XXXVI . A parallelogram is a four - sided figure of which the opposite sides are ...
Corollary . A quadrilateral which has two of its opposite sides equal and parallel , is a parallelogram . - See the following definition : - DEFINITION XXXVI . A parallelogram is a four - sided figure of which the opposite sides are ...
Σελίδα 91
Corollary 2. - The angle A is one - tenth of four right angles , the arc B D is one - tenth of the circumference , and the chord BD is the side of a regular decagon inscribed in the circle B D E. Corollary 3.
Corollary 2. - The angle A is one - tenth of four right angles , the arc B D is one - tenth of the circumference , and the chord BD is the side of a regular decagon inscribed in the circle B D E. Corollary 3.
Σελίδα 141
Q. E. D. COROLLARY 1. - In like manner it may be proved , that similar four- sided figures , or figures of any number of sides , are , one to another in the duplicate ratio of their homologous sides ; and this has been proved of ...
Q. E. D. COROLLARY 1. - In like manner it may be proved , that similar four- sided figures , or figures of any number of sides , are , one to another in the duplicate ratio of their homologous sides ; and this has been proved of ...
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