 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.  Annual Report - Page 361868Full view - About this book
 | Robert Potts - 1865 - 528 pages
...to the given straight line AB. PROPOSITION XIII. THEOREM. The angles which one straight line males 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. Then these... | |
 | Euclides - 1865 - 80 pages
...EGH, and BCD to FGH. PROPOSITION V. THEOR. The angles which one straight line makes with another on one side of it are either two right angles, or are together equal to two right angles. Let the straight line CD make with AB on the same side of it the angles ACD and BCD, these... | |
 | William Harris Johnston - 1865 - 478 pages
...another upon one tide of it, as the angles с Ъ d and а Ъ d, or abe and с Ь e, in the figure above, are either two right angles, or are together equal to two right angles. An angle greater than a right angle is called an obtuse angle. An angle less than a right angle... | |
 | James Fraser (bp. of Manchester.) - 1866 - 480 pages
...diagonal, puralleloyram, and mutually eq«anyular polyyons. 2. Give three corollaries to the proposition : The angles which one straight line makes with another,...two right angles, or are together equal to two right angles. 3. Prove that the angles at the base of an isosceles triangle are equal. 4. Prove that if,... | |
 | John Playfair - Geometry - 1855 - 350 pages
...given point C a perpendicular CH has been drawn to the given straight line AB. PROP. XIII. THEOR. Tke angles which one straight line makes with another upon one side of if, «• either two right angles, or are together equal to tiro right angles. Let the straight line... | |
 | Robert Potts - 1868 - 434 pages
...C, a perpendicular CH has been drawn to the given straight line -AB. QEF PROPOSITION XIII. THEOREM. The angles which one straight line makes with another...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. Then these... | |
 | Alfred Challice Johnson - Spherical trigonometry - 1871 - 178 pages
...triangle be equal, the angles opposite those sides are also equal, and vice versa. (Eue. L, 5, б.) 2. The angles which one straight line makes with another...two right angles, or are together equal to two right angles, or 180°. (Eue. I., 13.) 3. If two straight l1nes cut one another, the vertical or opposite... | |
 | Euclides - 1871 - 136 pages
...with centre A and distance AB in D ; and from AD, AE is cut off = AC: shew that AEJi is a right angle. The angles which one straight line makes with another...upon one side of it are either two right angles, or together equal to ttco right angles. Fig. 1. Fig. 2. Let AB make with CD upon one side of it the /... | |
 | Euclides, James Hamblin Smith - Geometry - 1872 - 376 pages
...AB in D ; and from AD, AE is cut off =AC: shew that AEB is a right angle. PROPOSITION XIII. THEOREM. The angles which one straight line makes with another...upon one side of it are either two right angles, or toget/ier equal to two right angles. Fig. 1. Fig. 2. Ji Let AB make with CD upon one side of it the... | |
 | Henry Major - Student teachers - 1873 - 588 pages
...the given straight line AB. XIII. — The angles which one straight line makes with another upon the 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 jlide of it, the angles CBA, ABD : these are... | |
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