 | 1815 - 502 sider
...(1377); by Mr. Kick. Oliver, of Bamburgh CatlU. Given the difference of the angles at the base, and tlie difference of the segments of the base made by a perpendicular from the vertical angle ; to construct tiie plane trianp.le, when the silid under the perpendicular of the triangle,... | |
 | 1827 - 822 sider
...and demonstrate it first. " Regiomontanua's Lemma. " As the difference of the sides of a triangle is to the difference of the segments of the base made by a perpendicular, so is the base to the sum of the sides of the triangle. [Then this is demonstrated.] " My own Lemma.... | |
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Given the vertical angle, the difference of the two sides containing it, and the difference of the segments of the base made by a perpendicular from the vertex ; construct the triangle. 
