if you have the diameter or the arc, then you can divide the diameter by two, or you can use the arc to calculate it.
area of an arc =lenght of arc *radius/2
To calculate the arc length of a sector: calculate the circumference length, using (pi * diameter), then multiply by (sector angle / 360 degrees) so : (pi * diameter) * (sector angle / 360) = arc length
length x width = area
The area of a sector of a circle with radius 12 and arc length 10pi is: 188.5 square units.
if you have the diameter or the arc, then you can divide the diameter by two, or you can use the arc to calculate it.
area of an arc =lenght of arc *radius/2
To calculate the arc length of a sector: calculate the circumference length, using (pi * diameter), then multiply by (sector angle / 360 degrees) so : (pi * diameter) * (sector angle / 360) = arc length
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.
A central angle can subtend (form) an arc of a circle. That has an area of 2 x pi x r x (angle A) / 360.
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