| Ireland commissioners of nat. educ - 1834 - 370 pages
...by thé radius of the circle, and the product is the area of the sector, f RULE П. As 360 is to the **de'grees in the arc of the sector, so is the area of the** whole circle to the area of the sector, i 1 . Let A С B О be a sector less than a semi-circle, whose... | |
| James Gallier - Building - 1836 - 228 pages
...the length of the arc, by half the length of the radius ; the product will be the area. RULE 2. — **As 360 degrees is to the number of degrees in the...the area of the circle to the area of the sector.** To find the Area of a Segment of a Circle. RULE. — To the chord of the whole arc, add the chord of... | |
| Mathematics - 1836 - 472 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.** To find the area of the segment of a circle. Find the area of the sector which has the same arc, and... | |
| Adrien Marie Legendre - Geometry - 1836 - 359 pages
...XII. Cer. 1). RULE II. — Compute the area of the whole circle : then say, as 360 degrees is to the **degrees in the arc of the sector, so is the area of the** whole circle to the area of the sector. 1. To find the area of a circular sector whose arc contains... | |
| Jeremiah Day - Measurement - 1836
...MULTIPLY THE RADIUS INTO HALF THE LENGTH OF THE 4Kc. Or, As 330, TO THE NUMBER OF DEGREES IN THE AKC ; $O **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 die area of the circle, which the... | |
| Commissioners of National Education in Ireland - Measurement - 1837 - 262 pages
...by the radiusof the circle, and the product is the area of the sector, f 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 4 1. Let ACBO be a sector less than a semicircle whose radius... | |
| Jeremiah Day - Geometry - 1838 - 416 pages
...MULTIPLY THE RADIUS INTO HALF THE LENGTH OP 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 - Geometry - 1839 - 432 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... | |
| Joseph Gwilt - Architects - 1842 - 1114 pages
...the product. This rule is founded on the same basis as that to Problem IX. Rule 2. As 36O 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 manifest, because it is proportional to the length... | |
| Charles Haynes Haswell - Engineering - 1844 - 264 pages
...Multiply the length of the arc adb by half the length of the radius a a. RDLE 2. — As 360 is to the **degrees in the arc of the sector, so is the area of the circle to the area of the sector.** NOTE. — If the diameter or radius is not given, add the square of half the chord of the arc to the... | |
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