| Euclides - 1853 - 147 sider
...angles. LET the straight line ab make with cd, upon one side of it, the angles cba, abd : these are **either two right angles, or are together equal to two right angles.** For if the angle cba be equal to abd, each of them is a right angle (10 def.) ; but if not, from the... | |
| William Somerville Orr - 1854
...XIII.— THEOREM. T!te angles which one straight line (AB) makes with another (DC) upon me side of it, **are either two right angles, or are together equal to two right** anglet. For the angle А В С is either equal to ABD, or it is not. * Def. 8. If AB С be = AB D,... | |
| Euclides - 1855
...straight line AB make with СD, upon one side of it, the two angles С BA, A 3 D. The*e angles are **either two right angles, or are together equal to two right angles.** For if the angle С BA bo equal to the angle ABD, each of them is a right angle (Def. 10). But if the... | |
| Henry White - 1856
...reciprocal proportion. 17 The angles which one straight line makes with another upon one side of it are **either two right angles, or are together equal to two right angles.** 18 Divide a straight line into two parts, so that the rectangle contained by the whole and ono of the... | |
| Cambridge univ, exam. papers - 1856
...isosceles triangles. 2. The angles which one straight line makes with another upon one side of it, are **either two right angles, or are together equal to two right angles.** 3. If a straight line fall upon two parallel straight lines, it makes the alternate angles equal to... | |
| Elias Loomis - 1857 - 226 sider
...straight line makes w^tk another, one side of it, are either two right angles, or are together equJ< **to two right angles. Let the straight line AB make with CD, upon one side of it, the angles** ABC, ABD; these are either two right angles, or are together equal to two right angles. For if the... | |
| W. Davis Haskoll - 1858 - 324 sider
...— The 13th, Book I. The angles which one straight line makes with another upon one side of it, are **either two right angles, or are together equal to two right angles.** The 14th, Book I. If at a point in a straight line, two other straight lines, upon the opposite sides... | |
| War office - 1858 - 12 sider
...901. •• Euclid. 1. The angles which one straight line makes with another upon one side of it, are **either two right angles, or are together equal to two right angles.** 2. The straight lines which join the extremities of two equal and parallel straight lines towards the... | |
| Elias Loomis - 1858 - 234 sider
...angles. Let the straight line AB make with CD, upon one side of it, the angles ABC, ABD ; these are **either two right angles, or are together equal to two right angles.** For if the angle ABC is equal to ABD, each of them is a right angle (Def. 10) ; but c K D if not, suppose... | |
| Sandhurst roy. military coll - 1859 - 1869 sider
...another straight line ? The angles which one straight line makes with another upon one side of it are **either two right angles, or are together equal to two right angles.** 2. The opposite sides and angles of parallelograms are equal to one another, and the diameter bisects... | |
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