| Elizabethan club - 1880 - 156 pages
...the obtuse angles. 3. All the angles of a rectilineal figure, together with four right angles, are **equal to twice as many right angles as the figure has sides.** A floor has to be laid with tiles in the form of regular figures all equal and similar ; show what... | |
| Isaac Todhunter - Euclid's Elements - 1880 - 426 pages
...the foregoing Corollary all the interior angles of the figure, together with four right angles, are **equal to twice as many right angles as the figure has sides.** Therefore all the interior angles of the figure, together with all its exterior angles, are equal to... | |
| John Gibson - 1881 - 302 pages
...opposite to it. 3. All the interior angles of any rectilineal figure, together with four right angles, are **equal to twice as many right angles as the figure has sides.** 4. Describe a parallelogram that shall be equal to a given triangle BCD, and have one of its angles... | |
| Thomas Holloway (surveyor.) - 1881 - 132 pages
...degrees. 3. All the interior angles of any rectilineal figure, together with four right angles, are **equal to twice as many right angles as the figure has sides.** Although further systems of proof could easily be quoted, I consider the foregoing quite sufficient... | |
| Thomas Newton Andrews - Geometry - 1881 - 168 pages
...proved that "All the interior angles of any rectilineal figure, together with four right angles, are **equal to twice as many right angles as the figure has sides."** If we have to describe a pentagon on the base AB, we must first calculate the angles at the base. Thus... | |
| 1882 - 480 pages
...EXPLANATIONS. 1. All the internal angles of any convex rectilineal figure, together with four right angles, are **equal to twice as many right angles as the figure has sides** (Euclid I., 32 Cor.) n denoting the number of sides : and T two right angles. (n — 2) T = angles... | |
| Education, Higher - 1882 - 498 pages
...every respect. 4 All the interior angles of any rectilineal figure together with four right angles, are **equal to twice as many right angles as the figure has sides.** 5. Equal triangles upon equal bases in the same straight line and towards the same parts are between... | |
| College of preceptors - 1882 - 528 pages
...referred to. 5. All the interior angles of any rectilineal figure, together with four right angles, are **equal to twice as many right angles as the figure has sides.** 6. The opposite sides and angles of a parallelogram are equal ; and the diameter bisects the parallelogram.... | |
| Marianne Nops - 1882 - 278 pages
...Therefore all the pairs of angles, ie all the interior and all the exterior angles of the figure, are **equal to twice as many right angles as the figure has sides.** But all the interior angles + four right angles = twice as many right angles as the figure has sides.... | |
| 1882 - 376 pages
...angles; and that all the interior angles of any rectilineal n'gure, together with four right angles, are **equal to twice as many right angles as the figure has sides.** 3. If the square described upon one of the sides of a triangle is equal to the squares described upon... | |
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