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An arc of the circle is a proportion of its circumference. if the angle at the centre of a circle with radius r is θ°, then the length of the arc is given by:
arc_length = 2πr × θ°/360° = πrθ ÷ 180
If the angle α is measured in radians instead, then a full turn is 2π radians, and:
arc_length = 2πr × α/2π = αr
ie the arc_length is the angle measured in radians times the radius.
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How do I find the diameter of a circle only having an arc length?
If you have only the arc length then you cannot find the diameter.
How to find a sector area in a circle if you have only the arc length?
If you have the arc length:where:L is the arc length.R is the radius of the circle of which the sector is part.
What is the arc length if the length of the arc is 95 degrees?
Find the circumference of the whole circle and then multiply that length by 95/360.
How do you find the circumference and arc length of a circle?
It depends on what information you do have.
How do you find the length of an arc in geometry?
length of arc/length of circumference = angle at centre/360 Rearranging the equation gives: length of arc = (angle at centre*length of circumference)/360
