| Euclid - 1845 - 336 pages
...of the acute angles is equal to the sum of the squares on the sides containing that angle diminished **by twice the rectangle contained by either of those sides and the** projection on it of the other. CO c BDADBAB Let ABC be any triangle of which A is an acute angle, and... | |
| 130 pages
...of the acute angles is equal to the sum of the squares on the sides containing that angle diminished **by twice the rectangle contained by either of those sides and the** projection on it of the other. CC c BDADBABA Let ABC be any triangle, of which A is an acute angle,... | |
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