 | Euclid, James Williamson - 1781 - 324 sider
...equal to the angles CDA, DAC ; therefore BCD is alfo the double of DAC ; but BCD is equal to either of the angles BDA, DBA ; therefore each of the angles BDA, DBA is double of the angle DAB. Therefore an ifofceles triangle ADB has been made, having each of the angles at the bafe BD double... | |
 | John Playfair - 1819 - 354 sider
...(32. 1.j ; therefore also BCD is double of DAC. But BCD is equal to each of the angles BDA, DBA, and therefore each of the angles BDA, DBA is double of the angle DAB ; wherefore an isosceles triangle ABD is described, having each of the angles at the base double... | |
 | Robert Simson - 1827 - 546 sider
...equal f to the angles CDA, DAC; therefore also t32. 1. BCD is double of DAC : and BCD was proved to be equal to each of the angles BDA, DBA ; therefore each of the angles BDA, DBA is double of the angle DAB. Wherefore an isosceles triangle ABD is described, having each of the angles at the base double... | |
 | Euclides - 1834 - 518 sider
...BCD is equal t to the angles CDA, DAC; therefore also BCD is double of DAC: and BCD was proved to be equal to each of the angles BDA, DBA ; therefore each of the angles BDA, DBA is double of the angle DAB. Wherefore, an isosceles triangle ABD is described, having each of the angles at the base, double... | |
 | John Playfair - 1837 - 332 sider
...(32. 1.) ; therefore also BCD is double of DAC. But BCD is equal to each of the angles BDA, DBA, and therefore each of the angles BDA, DBA, is double of the angle DAB ; wherefore an isosceles triangle ABD is described, having each of the angles at the base double... | |
 | Euclides - 1838 - 264 sider
...BCD is equal* to the angles CDA, DAC; therefore also BCD is double of DAC : and BCD was proved to be equal to each of the angles BDA, DBA ; therefore each of the angles BDA, DBA is double of the angle DAB. Wherefore an isosceles triangle ABD is described, having each of the angles at the base double... | |
 | Euclides - 1841 - 378 sider
...equal* to the angles CDA, * 32. 1. DAC; therefore also BCD is double of DAC, and BCD was proved to be equal to each of the angles BDA, DBA; therefore each of the angles BDA, DBA is double of the angle DAB; wherefore an isosceles triangle ABD is described, having each of the angles at the base double... | |
 | John Playfair - 1842 - 332 sider
...(32. 1.) ; therefore also BCD is double of DAC. But BCD is equal to each of the angles BDA, DBA, and therefore each of the angles BDA, DBA, is double of the angle DAB ; wherefore an isosceles triangle ABD is described, having each of the angles at the base double... | |
 | Euclides - 1845 - 546 sider
...equal to the angles CDA, DAC; (i. 32.) therefore also BCD is double of DAC: and BCD was proved to be equal to each of the angles BDA, DBA ; therefore each of the angles BDA, DBA is double of the angle DAB. Wherefore an isosceles triangle ABD is described, having each of the angles at the base double... | |
 | Euclides - 1846 - 292 sider
...the angles CAD, CDA; therefore also the angle BCD is double of the angle CAD : And the angle BCD is equal to each of the angles BDA, DBA ; therefore each...angles BDA, DBA is double of the angle BAD : Wherefore an isosceles triangle ABD has been described, having each of the angles at the base double of the third... | |
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To inscribe, an equilateral and equiangular pentagon in a given circle. Let ABCDE be the given circle. It is required to inscribe an equilateral... 
