Books Books DEF are likewise equal (13. i.) to two right angles ; therefore the angles AKB, AMB are equal to the angles DEG, DEF, of which AKB is equal to DEG ; wherefore the remaining angle AMB is equal to the remaining angle DEF. The First Six Books: Together with the Eleventh and Twelfth - Page 105
by Euclid - 1781 - 520 pages ## The Elements of Plane and Solid Geometry: With Chapters on Mensuration and ...

Isaac Sharpless - Geometry - 1879 - 282 pages
...are equal to two right angles. But the angles DEG, DEF are likewise equal (I. 15) to two right angles AMB are equal to the angles DEG, DEF, of which AKB...remaining angle DEF. In like manner the angle LNM may be proved equal to the angle DFE; and therefore the remaining angle MLN is equal (I. 30, Cor. 4) to the... ## The Elements of Euclid for the Use of Schools and Colleges: With Notes, an ...

Isaac Todhunter - Euclid's Elements - 1880 - 426 pages
...two right angles. [Axiom 3. But the angles DEG, DEF are together equal to two right angles. [I. 13. Therefore the angles AKB. AMB are equal to the angles DEG, DEF; of which the angle AKB is equal to the angle DEG ; [Cansir. therefore the remaining angle AMB is equal to the... 