| Charles Hutton - Mathematics - 1807
...9, for the whole circle. RULE II. Compute the area of the whole circle : then say, as 360 is to the **degrees in the arc of the sector, so is the area of the** whole circle, to the area of the sector. This is evident, because the sector is proportional to the... | |
| Charles Hutton - Mathematics - 1811
...9, for the whole circle. RULE II. Compute the area of the whole circle : then say, as 360 is to the **degrees in the arc of the sector, so is the area of the** whole circle, to the area of the sector. This is evident, because the sector is proportional to the... | |
| Jeremiah Day - Measurement - 1815 - 388 pages
...Multiply the radius into half the length of the arc, Or, A* 360, to the number of degrees in the arc ; **So is the area of the circle, to the area of the sector.** . , It is evident, that the area of the sector has the same ratio to the area of the circle, which... | |
| Charles Hutton - Mathematics - 1822 - 618 pages
...the whole circle. RULE II. Compute the area of the whole circle : then say, as :5"0 is to the decrees **in the arc of the sector, so is the area of the** whole circle to the area of the sector. This is evident, because the sector is proportional to the... | |
| Jeremiah Day - Geometry - 1824 - 440 pages
...MULTIPLY THE RADIUS INTO HALF THE LENGTH OF THE ARC. Or, As 360, TO THE NUMBER OF DEGREES IN THE ARC ; **So IS THE AREA OF THE CIRCLE, TO THE AREA OF THE SECTOR.** It is evident, that the area of the sector has the same ratio to the area of the circle, which the... | |
| Anthony Nesbit - Surveying - 1824 - 476 pages
...arc 45 feet, and the radius 37 feet 6 inches? Ans. 2.617ft. 10 in. 6 pa, RULE II. As 360 is to the **degrees in the arc of the sector, so is the area of the** whole circle to the area of the sector. Kate I. The area of a semicircle, a quadrant, 4.c. may be most... | |
| Alexander Ingram - Mathematics - 1830 - 462 pages
...length of the arc, and work as before. Or find the area of the circle : then, as 360° to the angle **of the sector, so is the area of the circle to the area of the sector.** 1. Required the area of a sector, of which the arc is 79, and the radius of the circle 47 yards. 39-5... | |
| Edinburgh encyclopaedia - 1830 - 954 pages
...of the sector, and the product will be the area, as in the whole circle. RULE II. As 360° is to the **degrees in the arc of the sector, so is the area of the** whole circle to the area of the sector. The first of these rules is contained in the last problem,... | |
| Jeremiah Day - Logarithms - 1831 - 418 pages
...MULTIPLY THE RADIUS INTO HALF THE LENGTH OF THE ARC. Or, As 360, TO THE NUMBER OF DEGREES IN THE ARC ; **SO IS THE AREA OF THE CIRCLE, TO THE AREA OF THE SECTOR.** It is evident, that the area of the sector has the same ratio to the area of the circle, which the... | |
| Jeremiah Day - Measurement - 1831 - 394 pages
...MULTIPLY THE RADIUS INTO HALF THE LENGTH OF THE ARC. Or, As 360, TO THE NUMBER OF DEGREES IN THE ARC ; **So IS THE AREA OF THE CIRCLE, TO THE AREA OF THE SECTOR.** It is evident, that the area of the sector has the same ratio to the area of the circle, which the... | |
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