 | Charles Astor Bristed - 1852 - 470 pages
...the base equal to each other, and likewise those which are terminated in the other. 2. If the sides of a triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are equal to two... | |
 | George Roberts Perkins - Geometry - 1856 - 460 pages
...sum of A and C, together with the same angle CBA, is also equal to two right angles (TV, CI) ; hence, the exterior angle is equal to the sum of the two interior and opposite angles. Cor. The exterior angle is greater than either of the interior and opposite angles.... | |
 | Euclides - 1856 - 168 pages
...are together equal to the two FBC, DBC, that is. to two right angles. XIV.— EUCLID I. 32. If one side of a triangle be produced, the exterior angle is equal to the two interior and opposite angles; and the three angles of every triangle are together equal to two... | |
 | Charles Davies, William Guy Peck - Mathematics - 1857 - 608 pages
...greater than their difference. 3. The sum of the angles is equal to two right angles ; and if any side be produced, the exterior angle is equal to the sum of the opposite interior angles. 4. If a line be drawn parallel to the base, it will divide the other two... | |
 | War office - 1858 - 578 pages
...point in the first line shall be equidistant from the two extremities of the finite line ? 2. If a side of a triangle be produced, the exterior angle is equal to the two interior and opposite angles, and the three interior angles of every triangle are together equal... | |
 | Sandhurst roy. military coll - 1859 - 672 pages
...find its cost at I/. 12s. the square yard. 10. Extract the square root of -0031843449. EUCLID. 1. If a side of a triangle be produced the exterior angle is equal to both the two interior and opposite angles, and the three interior angles of every triangle are together... | |
 | Young Men's Christian Associations (London, England) - Christianity - 1860 - 490 pages
...and thus advanced gradually as far as the 32nd proposition of Euclid, which runs thus :—" If one side of a triangle be produced, the exterior angle is equal to the sum of the two angles which subtend it ; and the three interior angles of every triangle are together equal to... | |
 | George Roberts Perkins - Geometry - 1860 - 472 pages
...sum of A and C, together with the same angle CBA, is also equal to two right angles (TV, CI) ; hence, the exterior angle is equal to the sum of the two interior and opposite angles. Cor. The exterior angle is greater than either of the interior and opposite angles.... | |
 | Royal college of surgeons of England - 1860 - 332 pages
...angles which they make at the point where they cut, are together equal to four right angles. 4. If a side of a triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are together equal... | |
 | S. M. Saxby - Nautical astronomy - 1861 - 140 pages
...ECB, so must the whole angle AD B be the double of the angle ACB. Fig. 17. Euc. I. Prop. XXXII. — If any side of a triangle be produced, the exterior angle is equal to the two interior and opposite angles; and the three interior angles of any triangle are equal to two right... | |
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If any side of a triangle be produced, the exterior angle is equal to the sum of the two interior and opposite angles. 
