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A rectilineal figure is said to be described about a circle, when each side of the circumscribed figure touches the circumference of the circle. 5. In like manner, a circle is said to be inscribed...
Euclid's Elements of Geometry: The Six First Books. To which are Added ... - Page 106
by Euclid, Rev. John Allen - 1822 - 494 pages

A Text-book of Euclid's Elements for the Use of Schools, Books I.-IV., Book 1

Henry Sinclair Hall, Frederick Haller Stevens - Euclid's Elements - 1900 - 304 pages
...Dodecagon, Quindecagon. 2. A Polygon is Regular when all its sides are equal, and all its angles are equal. 3. A rectilineal figure is said to be inscribed in a circle, when all its angular points are on the circumference of the circle; and a circle is said to be circumscribed about...

A Text-book of Euclid's Elements for the Use of Schools, Book 1

Euclid - Euclid's Elements - 1904 - 456 pages
...sides Quindecagon. 2. A Polygon is Regular when all its sides are equal, and all its angles are equal. 3. A rectilineal figure is said to be inscribed in a circle, when all its angular points are on the circumference of the circle; and a circle is said to be circumscribed about...

A School Geometry, Parts 1-4

Henry Sinclair Hall - 1908
...Dodecagon, Quindecagon. 2. A Polygon is Begular when all its sides are equal, and all its angles are equal. 3. A rectilineal figure is said to be inscribed in a circle, when all its angular points are on the circumference of the circle ; and a circle is said to be circumscribed about...