Q: How do you find out the length of a radius?

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A radius of a regular triangle is 12 . find the length of one side of the triangle?

The radius of the cylinder would be 0.64cm ! The radius is half the diameter - length has nothing to do with the question !

If the central angle is 70 and the radius is 8cm, how do you find out the chord lenght?

The length of the arc is r*theta where r is the radius and theta the angle subtended by the arc at the centre of the circle. If you do not know theta (or cannot derive it), you cannot find the length of the arc.

How to find the area of a fillet. Is it area =0.2146 radius squared

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radius of curvature = 2Focal length

multiply the chord length and radius and divide by 2

radius = diameter/2

A radius of a regular triangle is 12 . find the length of one side of the triangle?

The length of a radius is not the length of a diameter. The diameter is two times the length of the radius.

(arc length / (radius * 2 * pi)) * 360 = angle

The radius of the cylinder would be 0.64cm ! The radius is half the diameter - length has nothing to do with the question !

If you are given a chord length of a circle, unless you are given more information about the chord, you can not determine what the radius of the circle will be. This is because the chord length in a circle can vary from a length of (essentially) 0, up to a length of double the radius (the diameter). The best you can say about the radius if given the chord length, is that the length of the radius is at least as long has half half the chord length.

If the central angle is 70 and the radius is 8cm, how do you find out the chord lenght?

length=n/360*2*pi*radius

The length of the arc is r*theta where r is the radius and theta the angle subtended by the arc at the centre of the circle. If you do not know theta (or cannot derive it), you cannot find the length of the arc.

How to find the area of a fillet. Is it area =0.2146 radius squared