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" PERIPHERY of a circle is its entire bounding line ; or it is a curved line, all points of which are equally distant from a point within called the centre. "
A Complete Arithmetic: Oral and Written - Σελίδα 72
των Malcolm MacVicar - 1878
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Marks' First Lessons in Geometry: In Two Parts, Objectively Presented and ...

Bernhard Marks - 1869 - 157 σελίδες
...plane figure bounded by this curve is called a " circle." What point is at the centre of this figure ? A circle is a plane figure bounded by a curved line, all points of which are equally distant from the centre. The curved line is called a "circumference" The circumference of a circle is the curve...

Elements of Geometry and Trigonometry: With Practical Applications

Benjamin Greenleaf - 1869 - 382 σελίδες
...THE MEASURE 0F ANGLES. DEFINITI0NS. 152. A CIBCLE is a plane figare bounded by a curved line, all the points of which are equally distant from a point within called the centre; as the figure ADB E. 153. The CIRCUMFERENCE or PERIPHERY of a circle is its entire bounding line ;...

A Natural Philosophy: Embracing the Most Recent Discoveries in the Various ...

George Payn Quackenbos - 1869 - 450 σελίδες
...whose sides are equal; as, IJKL, Fig. 23. 22. A Sphere is a solid bounded by a curved surface, all the points of which are equally distant from a point within called the centre; as, ABCD, Fig. 24. " 23. The Axis of a sphere is a straight line passing through its centre and terminating...

New Practical Arithmetic in which the Science and Its Applications are ...

Henry Bartlett Maglathlin - 1869 - 324 σελίδες
...Circular Measure is used for measuring angles, latitude and longitude, difference of direction, etc. 218. A Circle is a plane figure, bounded by a curved line, all the points of which are equally distant from a point within, called the center. 219. The Circumference...

A Complete Arithmetic: Uniting Mental and Written Exercises in a Natural ...

Emerson Elbridge White - 1870 - 340 σελίδες
...called the Base, and the other the Perpendicular or Altitude. 156. A Circle is a portion of a plane bounded by a curved line, all points of which are equally distant from a point within, called the center. The curved line which bounds a circle is its Circumference. One-half of a circumference...

Marks' First Lessons in Geometry: In Two Parts : Objectively Presented and ...

Bernard Marks - 1871 - 157 σελίδες
...figure bounded by this curve is called a "•circle." What point is at the centre of this figure ? A circle is a plane figure bounded by a curved line, all points of which are equally distant from the centre. The curved line is called a "circumference." The circumference of a circle is the curve...

The Southern Review, Τόμος 9;Τόμος 12;Τόμος 15

1871
...circle answers to our author's definition of a circumference. For an arc ' is a curve line, all the points of which are equally distant from a point within, called the centre.' This definition is, however, not new. If Professor Smith will consult Montucla's History of Mathematics,...

A Treatise on Elementary Geometry: With Appendices Containing a Collection ...

William Chauvenet - 1871 - 368 σελίδες
...aplar* tangent to the cone. THE SPHERE. 25. Definition. A sphere is a solid bounded by a surface all the points of which are equally distant from a point within called the centre.. A. sphere may be generated by the revolution of a semicircle ABC about its diameter A Cos an axis ;...

A Treatise on Elementary Geometry: With Appendices Containing a Collection ...

William Chauvenet - 1872 - 368 σελίδες
...• tangent to the cone. THE SPHERE. 25. Definition. A sphere is a solid bounded by a surface all the points of which are equally distant from a point within called the centre. A sphere may be generated by the revolution of a semicircle ABC about its diameter AC as an axis; for...

New Practical Arithmetic: In which the Science and Its Applications are ...

Henry Bartlett Maglathlin - 1873 - 336 σελίδες
...feet, and the perpendicular from the center to a side 12.64 feet ? Ans. 553.63-)- sq. ft. CIRCLES. 418. A Circle is a plane figure bounded by a curved line, all the points of which are equally distant from a point within, called the center. The CIRCUMFERENCE is...




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