 | 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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In every triangle, the square of the side subtending any of the acute angles, is less than the squares of the sides containing that angle, by twice the rectangle contained by either of these sides, and the straight line intercepted between the perpendicular... 
