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 Βιβλία Βιβλία The angles which one straight line makes with another upon one side of i't, are either two right angles, or are together eqval to two right angles. Elements of Geometry: Containing the First Six Books of Euclid, with a ... - Σελίδα 17
των Euclid, John Playfair - 1853 - 317 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## A companion to Euclid: being a help to the understanding and remembering of ...

Euclides - 1837 - 88 σελίδες
...PROPOSITION XIII. Theorem, 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. Fig.l. A Fig. 2. 1) Steps of the Demonstration. (In fig. 1, the Z DBA = Z ABC .'. each is a rt. Z).... ## The Elements of Euclid

Euclid - 1838 - 416 σελίδες
...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...angle CBA be equal to ABD, each of them is a right AEA D B DB C (def. 1 0.) angle ; but, if not, from the point B draw BE at right angles (11. 1.) to... ## The Elements of Euclid

Euclid - 1838 - 416 σελίδες
...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...angle CBA be equal to ABD, each of them is a right AEA B DB ABE, together, add the angle EBD to each of these equals ; therefore the angles CBE, EBD are... ## Euclid's Elements [book 1-6] with corrections, by J.R. Young

Euclides - 1838
...straight line maket with another upon one side of it, are either two right angles, or are together equal to two right angles. .. . » Let the straight line...CD, upon one side of it, the angles CBA, ABD : these shall either be two right angles, or shall together be equal to two right angles. For the angle CBA... ## The Elements of Euclid; viz. the first six books,together with the eleventh ...

Euclides - 1841 - 351 σελίδες
...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...CD, upon one side of it, the angles CBA, ABD; these shall be either two right angles, or shall be together equal to two right angles. For if the angle... ## Register

University of Cambridge - 1841
...not to be employed.] t* THE angles which one straight line makes with another upon the une side of it are either two right angles, or are together equal to two right angles. 2. Describe an isosceles triangle, having each of the angles at the base double of the third angle.... ## Elements of geometry: consisting of the first four,and the sixth, books of ...

Euclides - 1842
...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...CD, upon one side of it, the angles CBA, ABD: these shall either be two right angles, or shall together be equal to two right angles. For if the angle... ## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - 1842 - 317 σελίδες
...line AB. PROP. XIII. THEOR. 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 are either two... ## Chambers's information for the people, ed. by W. and R. Chambers, Τόμος 2

Chambers W. and R., ltd - 1842
...because, as lias been already stated, tbe angles made by one straight line falling upon another, arc either two right angles, or are together equal to two right angles ; therefore, the angles CBA, BAG, ACB, are equal to two right angles, or 180 degrees. There ore several... ## General Report on Public Instruction in the Bengal Presidency

1843
...taken ? MATHEMATICS. SENIOR. 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. Define a parallelogram. Parallelograms on the same base and between the same parallels are equal...