 | Robert Patterson - 1819 - 174 σελίδες
...seven, a heptagon ; one of eight, an octagon, &c. 12. A circle is a plane figure, bounded by a curve line called the circumference, which is in all parts equidistant from a certain point within the same called the center. A degree is the 360th part of the whole circumference... | |
 | Anthony Nesbit, W. Little - 1822 - 916 σελίδες
...48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. 49. An ellipse is a plane figure bounded by a curved line, called the circumference; but as the figure is not a circle, it is described from two points in the loneest diameter, called... | |
 | Anthony Nesbit - 1824 - 476 σελίδες
...48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. 49. Ap ellipse is a plane figure bounded by a curved line, called the circumference ; but as the figure is not a circle, it is described from two points in the longest diameter, called... | |
 | Leonard Dunnell Gale - 1838 - 280 σελίδες
...from h to b it will appear retrograde, and from 6 to c it will again appear stationary. Fig. 3. XV. A circle is a plane figure bounded by a curved line, called the circumference, every part of which is equally distant from the centre. XVI. The diameter of a circle is a line drawn... | |
 | John Lauris Blake - 1838 - 160 σελίδες
...point of the heavens. | •See Fig. 5, Plate VI. 1 See Fig. 7, Plate VI. I 6 FIRST BOOK IN ASTRONOMY. A circle is a plane figure bounded by a curved line, called the cir cumference, every part of which is equally distant from the centre. The diameter of a circle is... | |
 | Roswell Chamberlain Smith - 1842 - 320 σελίδες
...entire distance round it; and is found by adding together all the sides that bound it. Fig. 14. 34. A CIRCLE is a plane figure bounded by a curved line, called the Circumference or Periphery ; which is every where equally distant from a certain point within it. called the CENTRE.... | |
 | Roswell Chamberlain Smith - 1843 - 320 σελίδες
...figure, is the entire distance round it; and is found by adding together all the sides that bound it. 34. A CIRCLE is a plane figure bounded by a curved line, called the Circumference or Periphery ; which is every where equally distant from a certain point within it, called the CENTRE.... | |
 | John Thomas Crossley - 1845 - 336 σελίδες
...it is equiangular when all its angles are equal. When both these are equal, it is a regular figure. A Circle is a plane figure bounded by a curved line, called the Circumference, which is every where equidistant from a point within, called its Centre. The circumference is sometimes called... | |
 | Anthony Nesbit - 1847 - 492 σελίδες
...regular polygon has all its sides and angles equal, they are unequal, the polygon is irregular. 38. A circle is a plane figure, bounded by a curved line, called the circumference, which is everywhere equidistant from a certain point within it, called the centre. 39. The circumference of... | |
 | James Wharton - 1847 - 224 σελίδες
...circle, as ADC. 43. A sector is any part of a circle, bounded by an arc and two radii. 44. An ellipse is a plane figure bounded by a curved line, called the circumference : x and Y are called the foci, and the figure is such that sx + SY or xz +ZY are always = 2 QR. 45.... | |
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A circle is a plane figure bounded by a curved line called the circumference, every point of which is equally distant from a point within called the center, Fig. 
