| Robert Simson - 1762 - 466 sider
...to the two interior and oppofite angles ; and the three interior angles of every triangle are ec(ual **to two right angles. Let ABC be a triangle, and let one of its** fides BC be produced to D. the exterior angle ACD is equal to the two interior and oppofite angles... | |
| 1867
...connected with our present subject. Euclid has proved, in the 32nd Proposition of his First BccV. that **the three interior angles of every triangle are equal to two right angles,** that is, to 180°. Let the hear this fact in mind. Hence it follows that if the of any two angles of... | |
| Robert Simson - 1775 - 520 sider
...IF a fide of any triangle be producedi the exterior angle is equal to the two interior and oppofite **angles ; and the three interior angles of every triangle...angles. Let ABC be a triangle, and let one of its** fides BC be produced to D ; the exterior angle ACD is equal to the two interior and oppofite angles... | |
| Robert Simson - 1781 - 466 sider
...TF a fide of any triangle be produced, the exterior angle is equal to the two interior and oppofite **angles ; and the three interior angles of every triangle...angles. Let ABC be a triangle, and let one of its** fides BC be produced to D. the exterior angle ACD is equal to the two interior and oppofite angles... | |
| Euclid - 1781 - 520 sider
...TF a fide of any triangle be produced, the exterior angle is equal to the two interior and oppofite **angles ; and the three interior angles of every triangle...angles. Let ABC be a triangle, and let one of its** fides BC be produced to D ; the exterior angle ACD is equal to the two interior and oppofite angles... | |
| Proclus (Diadochus.) - 1788
...under fome general* klea, of which we pofleis a previous knowledge : thus, he who already knows that **the three interior angles of) every triangle are equal to two right,** and' is as yet ignorant that fome particular figure delineated on paper is- a triangle, isv no fooner... | |
| Euclid, John Playfair - 1795 - 400 sider
...a fide of any triangle be produced, the exterior J. angle is equal to the two interior and oppofite **angles ; and the three interior angles of every triangle...angles. Let ABC be a triangle, and let one of its** fides BC be produced to D ; the exterior angle ACD is equal to the two in- . terior and oppofite angles... | |
| Alexander Ingram - 1799 - 351 sider
...IF a fide of any triangle be produced, the exterior angle is equal to the two interior and oppoiite **angles ; and the three interior angles of every triangle...angles. Let ABC be a triangle, and let one of its** fides BC be produced to D ; the exterior angle ACD is equal to the two interior and oppofite angles... | |
| Robert Simson - 1804
...IF a fide of any triangle be produced, the exterior angle is equal to the two interior and oppofite **angles ; and the three interior angles of every triangle...angles. Let ABC be a triangle, and let one of its** fides BC be produced to D. the exterior angle ACD is equal to the two interior and oppofite angles... | |
| Robert Simson - 1806 - 518 sider
...BC. Which was to be done. i»» —i PROP. XXXII. THEOR. IF a side of any triangle be produced, the **exterior angle is equal to the two interior and opposite...sides BC be produced to D ; the exterior angle ACD** is equal to the two interior and opposite angles CAB, ABC ; and the three interior angles of the triangle,... | |
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