 | Euclides - 1848 - عدد الصفحات: 52
...length, from a given point without it. PROP. XIII. THEOREM. 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. PROP. XIV. THEOREM. If, at a point in a straight line, two other straight lines, upon the opposite... | |
 | Great Britain. Committee on Education - 1848 - عدد الصفحات: 606
...isosceles triangle, and an equilateral triangle. Prove that 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 angles at the base of an isosceles triangle are equal to each other. 3. Define parallel straight... | |
 | J. Goodall, W. Hammond - 1848 - عدد الصفحات: 390
...triangle, and and an equilateral triangle. Prove that 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 angles at the base of an isosceles triangle are equal to each other. 3. Define parallel straight... | |
 | Great Britain. Council on Education - 1848 - عدد الصفحات: 596
...isosceles triangle, and an equilateral triangle. Prove that 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 angles at the base of an isosceles triangle are equal to each other. 3. Define parallel straight... | |
 | Elias Loomis - 1849 - عدد الصفحات: 252
...is equal to the angle EGH, PROPOSITION II. THEOREM. 77/o 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. if not, suppose the line BE to be drawn from the point B, perpendicular to CD; then will each of the... | |
 | Euclid, Thomas Tate - 1849 - عدد الصفحات: 120
...right 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 (Def. 10.) angle; but, if not, from... | |
 | 1850 - عدد الصفحات: 488
...position, the Order of Jesuits. GEOMETRY. SECTION I. 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. 3. If two triangles have two sides of the one equal to two sides of the other, each to each, but the... | |
 | Great Britain. Committee on Education - 1850 - عدد الصفحات: 790
...Investigate the prismoidal formula. GEOMETRY. Secfion 1. 1. The angles which one right line makes with another upon one side of it are either two right angles, or are together equal to two right angles. 2. If one side of a triangle be produced, the exterior angle is greater than either of the two interior... | |
 | 1852 - عدد الصفحات: 316
...EXAMINATION PAPER FOR PUPIL TEACHERSEUCLID PAPER, 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. II. In any right angled triangle, the square which is described upon the side subtending the right... | |
 | Janet Taylor - 1851 - عدد الصفحات: 674
...INTRODUCTION. THEOREMS. Theorem 1. [Euclid i. 13.] If one line falls on another the angles it makes with it are either two right angles, or are together equal to two right angles. Let AB meet the line DC, then the angles CDB CDA taken together are equal to two right angles. For let... | |
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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. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD : these shall either be... 
