 | Robert Gibson - 1806 - 486 σελίδες
...are called irregular polygons, as an irregular pentagon, hexagon, &c. 51. Four quantities are said to be in proportion when the product of the extremes...multiplied by D, be equal to B multiplied by C, then A is said to be to B as C is to D. POSTULATES OR PETITIONS. 1 . That a right line may be drawn from any... | |
 | Robert Gibson - 1808 - 482 σελίδες
...are called irregular polygons, as an irregular pentagon, hexagon, &c. 51. Four quantities are said to be in proportion when the product of the extremes...multiplied by D, be equal to B multiplied by C, then A is said to be to B as C is to D. POSTULATES OR PETITIONS. 1 . That a right line may be drawn from any... | |
 | Robert Gibson - 1811 - 580 σελίδες
...called irregular polygons, as an irregular pentagon, hexagon, SCc. .« 49. Four quantities are said to be in proportion when the product of the extremes...multiplied by D, be equal to B multiplied by C, then A is said to be to B as C is to D. POSTULATES OR PETITIONS. 1. That a right line mav be drawn from any one... | |
 | Robert Gibson - 1814 - 558 σελίδες
...are called irregular polygons, as an irregular pentagon, hexagon, 6,'c. 49. Four quantities are said to be in proportion when the product of the extremes...the means : thus if A multiplied by D, be equal to В multiplied by C} then A is said to 1.3 to. В as С is to D. POSTULATES OR PETITIONS. 1. That a... | |
 | Robert Gibson - 1832 - 290 σελίδες
...are called irregular polygons, as an irregular pentagon, hexagon, &c. 49. Four quantities are said to be in proportion when the product of the extremes...multiplied by D be equal to B multiplied by C, then A is said to be to £ as C is to D. POSTULATES, OR PETITIONS. 1. That a right line may be drawn from anyone... | |
 | Robert Mudie - 1836 - 524 σελίδες
...second and third the means ; and the definition may be also expressed, Four quantities are proportional when the product of the extremes is equal to that of the means. As this is a perfectly simple definition, it holds true conversely, so that we can either infer the... | |
 | Robert Mudie - 1836 - 542 σελίδες
...second and third the means ; and the definition may be also expressed, Four quantities are proportional when the product of the extremes is equal to that of the means. As this is a perfectly simple definition, it holds true conversely, so that we can either infer the... | |
 | Robert Gibson, James Ryan - 1839 - 452 σελίδες
...are called irregular polygons, as an irregular pentagon, hexagon, &e. 49. Four quantities are said 10 be in proportion when the product of the extremes is equal to that of the means i thus if A multiplied by D be equal to B multiplied by C, then A is said to be to B as C is to D.... | |
 | Olinthus Gregory - 1840 - 208 σελίδες
...by equal fractions, be carefully pointed out. (A.) When four numbers are direct proportionals, the product of the extremes is equal to that of the means. Thus: — If then, also, But Cor. Hence ad C whence the rules of proporc — -j- < . . . . . rr 6 I tion in arithmetic.... | |
 | Olinthus Gregory - 1840 - 204 σελίδες
..." y ' since each has the same ratio to unity. (h.~) When four numbers are direct proportionals, the product of the extremes is equal to that of the means. Thus: — __ ad C whence the rules of propor6 1 tion in arithmetic. [Let it be remarked that the ordinary... | |
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Four quantities are said to be in proportion when the product of the extremes is equal to that of the means, thus if A multiplied by D, be equal to B multiplied by C, then A is said to be to B as C is to D. POSTULATES OR PETITIONS. 1 . That a right line... 
