 | Cowley Oxon, dioc. school - 1860 - 318 Seiten
...equal to the squares of the two parts, together with twice the rectangle contained by the parts. 4. The angle at the centre of a circle is double of the angle at the circumference upon the same base, that is upon the same part of the circumference. 5. Similar triangles... | |
 | 130 Seiten
...the point B on the point E; .'. the arc AGB coincides with the arc DHE and is equal to it. 80. Since the angle at the centre of a circle is double of the angle at the circumference which stands on the same arc, it follows that the arcs on which equal angles at the circumferences... | |
 | Education Department - 1879 - 1118 Seiten
...line which bisects the angle between two equal chords will pass through the centre of the circle. 4. The angle at the centre of a circle is double of the angle at the circumference on the same base. It' a circle pass through three adjacent angular points of a regular... | |
 | Popular educator - 1860 - 424 Seiten
...the proposition called by Simeon the twentieth of the third Book, the object of which jg to phow that the angle at the centre of a circle is double of the angle at the circumference. «Cor. 16. 11 evidence is deminded of the existence of magnitudes which, \g added together... | |
 | Euclid - 1859 - 254 Seiten
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The angle at the centre of a circle is double of the angle at the circumference upon the same base, that is, upon the same part of the circumference. 
