 | Theophilus Nelson - Geometry, Modern - 1902 - 154 pages
...the circumference. 29. The straight lines OA, OB, OC, etc., are radii of the circle. Definition : — A radius of a circle is a straight line drawn from the centre to any point on the circumference. Definition: — An arc is a portion of a circumference. Name the arcs... | |
 | Philip Devereux Johnston - Mechanical drawing - 1903 - 220 pages
...the Circumference, all points of which are equally distant from a point within called the Centre. 48 A Radius of a circle is a straight line drawn from the centre to the circumference. 0 49 A Diameter of a circle is any straight line passing through the centre and having its extremities... | |
 | Euclid, Rupert Deakin - Geometry - 1903 - 218 pages
...two right angles. 14. The perimeter of a figure is the total length of the lines which bound it. 15. A radius of a circle is a straight line drawn from the centre to the circumference. EXERCISES. 1. Derive and explain the words adjacent and vertical, as applied to (1) lines and (2) angles.... | |
 | Euclid - Euclid's Elements - 1904 - 488 pages
...centre of the circle. NOTE. Circles which have the same centre are said to be concentric. I. Def. 16. A radius of a circle is a straight line drawn from the centre to the circumference. I. Def. 17. A diameter of a circle is a straight line drawn through the centre, and terminated both... | |
 | Fletcher Durell - Geometry - 1911 - 553 pages
...center, as the circle 0; or by naming two or more points on its circumference, as the circle ACD. 198. A radius of a circle is a straight line drawn from the center to any point on the circumference, as AO. A diameter of a circle is a straight line drawn through... | |
 | Fletcher Durell - Geometry, Solid - 1904 - 232 pages
...a curved line, all points of which are equally distant from a point within called the center. 198. A radius of a circle is a straight line drawn from the center to any point on the circumference. 208. Radii of the same circle, or of equal circles, arc equal.... | |
 | Fletcher Durell - Geometry, Plane - 1904 - 382 pages
...center, as the circle 0; or by naming two or more points on its circumference, as the circle ACD. i!98. A radius of a circle is a straight line drawn from the center to any point on the circumference, as AO. A diameter of a circle is a straight line drawn through... | |
 | J. W. Riley - Carpentry - 1905 - 522 pages
...that all points in it are equidistant from a point within the circle called the centre (Fig. 22). The radius of a circle is a straight line drawn from the centre to the circumference. It follows from the definition Fm. 22. Chord Fio. 24. of the circle that all radii of the same circle... | |
 | Leonard Elliott Brookes - Machine-shop practice - 1906 - 664 pages
...diameters. Any circle twice the diameter of another contains four times the area of the other. The radius of a circle is a straight line drawn from the centre to the circumference as LM— Fig. 63. The diameter of acirde is a straight line drawn through the centre, and terminated... | |
 | Calvin Franklin Swingle, Frederick John Prior - Air-brakes - 1906 - 676 pages
...diameters. Any circle twice the diameter of another contains four times the area of the other. Fig. 63. The radius of a circle is a straight line drawn from the centre to the circumference as LM — Fig. 63. The diameter of acirde is a straight line drawn through the centre, and terminated... | |
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A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. 
