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Density or weight is calculated by mass/volume
The answer depends on what information about the circle is given: area, radius, length and angle of arc, area and angle of sector, etc. In each case, there is a different way to calculate the diameter but, since there is no information on what is known, it is not possible to answer the question.
Circumference = diameter*pi
It is not possible to calculate weight just from length, width and/or height. (These can give you volume and area, but not weight). For weight, you need to know "how heavy it is per this amount of stuff" is - e.g "3 grams per square cm" or "6 tonnes per inch".
Subtract the square of the width from the diameter. The square root of that is the length.
You can't. They are independent of one another. A pipe of a given diameter may have any length, and vice-versa.
You cannot. Diameter and length can, for some particular shapes, give you the volume. But that will not give you the mass unless you know the density of the substance.
Answer 1It is necessary to assume that the shape is a sphere, since that is the only shape whose volume is determined by only its radius/diameter.Radius = Diameter/2Volume = 4/3*pi*r3 or 1/6*pi*d3Weight = Density*VolumeAnswer 2If you are given length as well as diameter, the object could be in the shape of a cylinder. The formula for the volume of a cylinder is V = (pi)r2h. Use the formulas for radius and weight given in answer 1.
Density or weight is calculated by mass/volume
Radius of a circle = diameter/2
The length of the spiral ring is given by the formula L=N*Pi(D+d)+8d where L=length, N=number of spirals, D=diameter of pile and d=diameter of the bar.
The answer depends on what information about the circle is given: area, radius, length and angle of arc, area and angle of sector, etc. In each case, there is a different way to calculate the diameter but, since there is no information on what is known, it is not possible to answer the question.
Circumference = diameter*pi
It is not possible to calculate weight just from length, width and/or height. (These can give you volume and area, but not weight). For weight, you need to know "how heavy it is per this amount of stuff" is - e.g "3 grams per square cm" or "6 tonnes per inch".
Subtract the square of the width from the diameter. The square root of that is the length.
You cannot. The mass depends on the material of the shaft and that has not been specified.
Divide by 3.14