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arc length/circumference=central angle/360

1/9=central angle/360

central angle=40

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Q: Circumference equals 9 and arc length is 1 what is the central angle?
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How do you find the length of the arc of a circle with only the measurement of the central angle and the Circumference?

The entire circumference has a central angle of 360 degrees. The arc is a fraction of the circumference. The fraction is (central angle) divided by (360). So the arc length is: (circumference) x (central angle) / (360) .


What is the measure of the central angle of a circle with the arc length of 29.21 and the circumference of 40.44?

arc length/circumference = central angle/2*pi (radians) So, central angle = 2*pi*arc length/circumference = 4.54 radians. Or, since 2*pi radians = 360 degrees, central angle = 360*arc length/circumference = 260.0 degrees, approx.


How do you find the arc length of a minor arc when c equals 18.84?

I'm assuming that "c" is short for "circumference". The length of an arc is (circumference)*(360/angle). So the length of an arc in a circle with circumference length of 18.84 is 6782.4/angle, where the angle is measured in degrees.


How do you find the arc length with the angle given?

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.


Find the measure of the central angle with the arc length of 29.21 and the circumference of 40.44?

260.03


What is the measure of a central angle with a circumference of 9 and an arc length of 1?

40 degrees


How do you find the degree measure of a central angle in a circle if both the radius and the length of the intercepted arc are known?

-- Circumference of the circle = (pi) x (radius) -- length of the intercepted arc/circumference = degree measure of the central angle/360 degrees


What is the circumference of a circle with a length of an arc 28.61 with a central of 120 what is the circumference?

A central angle of 120 is one third of the circle, so the arc length of 28.61 is one third of the circumference. 28.61 X 3 = 85.83


How do you find the arc length when the central angle is given?

Well, in degrees, the arc is congruent to its central angle. If the radius is given, however, just find the circumference of the circle (C=πd). Then, take the measure of the central angle, and divide that by 360 degrees. Multiply the circumference by the dividend, and you will get the arc length. This works because it is a proportion. Circumference:Arc length::Total degrees in triangle:Arc's central angle. Hope that helped. :D


Find the measure of a central angle with circumference of 9 and arc length of 1?

suck this dudck.


What is the central angle of a circle with an arc length of 29.21 and a circumference of 40.44?

260.03 for A+ if you wanna know how this is how I got it Central angle = (29.21)(360) / 40.44 = 260.03


How do you find the radius of a circle if the central angle is 36 degrees and the arc length of the sector is 2 pi cm?

The measure of the central angle divided by 360 degrees equals the arc length divided by circumference. So 36 degrees divided by 360 degrees equals 2pi cm/ 2pi*radius. 1/10=1/radius. Radius=10 cm.