For A+ 7.22
The area of a sector of a circle is proportional to the angle at the center of the sector, with 360 degrees corresponding to the full circle. Therefore, the area of the total circle for which the problem is stated is 50 X 360/110 = about 163.6 square units. The area of a circle is also equal to pi multiplied by the square of the radius of the circle, so that the radius r of this circle equals the square root of 163.6/pi = about 7.217 units. The circumference of the circle is also twice the radius multiplied by pi = 45 units, to the justified number of significant digits (limited by "50").a+ 45.33
The circumference of a circle is NOT 360 degrees. The circumference is the distance around the curve of the circle. This has a measurement unit of length, not degrees. The angular displacement, in going completely around any point is 360 degrees and that follows from the definition of a degree.
measure of central angle/360 degrees = area of sector/area of circle 110 degrees/360 degrees = 40 unit2/ pi r2 unit2 11/36 = 40/pi r2 11 pi r2 = 40 x 36 11 pi r2 = 1,440 r2 = 1,440/11 pi r = square root of 1,440/11 pi r = 20.3 unit approximately
An arc second is a measurement of an angle, so you would need to know how far away the object is. From there, there are two ways to proceed: 1. Use a circle with the distance as the radius a. find the degree fraction (degrees/360; there are 3600 arcseconds in 1 degree) b. find the circumference of the circle and multiply by the degree fraction 2. Set up a triangle and use a trigonometric function.
1/360
A circle is 360 degrees if that's what you're asking.
-- Circumference of the circle = (pi) x (radius) -- length of the intercepted arc/circumference = degree measure of the central angle/360 degrees
A 130-degree radius typically refers to a circular arc or sector with a central angle of 130 degrees. In this context, the radius is the distance from the center of the circle to any point on its circumference. This means that if you were to draw a circle with a radius of a specific length, the arc defined by a 130-degree angle would represent a portion of that circle, covering about one-third of its total circumference.
An arc can be measured either in degree or in unit length. An arc is a portion of the circumference of the circle which is determined by the size of its corresponding central angle. We create a proportion that compares the arc to the whole circle first in degree measure and then in unit length. (measure of central angle/360 degrees) = (arc length/circumference) arc length = (measure of central angle/360 degrees)(circumference) But, maybe the angle that determines the arc in your problem is not a central angle. In such a case, find the arc measure in degree, and then write the proportion to find the arc length.
360 degrees in a circle 120 degrees = 12mm 360 degrees = 36mm Therefore the circumference of the circle is 36mm.
It will represent 1/360 of a circle's circumference of 360 degrees
one three-hundred-and-sixtieth of the circumference of a circle
It is a 90 degree turn or circumference/4
It is an arc comprising half the circumference.
May things, but the probable answer sought here is a diameter of a circle, at the circumference of the circle.
The radius is 12
Divide the arc's degree measure by 360°, then multiply by the circumference of the circle.
75.37 c=(AL)(360) devided by (angle degree)