When the arc length is the same size as a circle's radius it is known as a radian and it measures just under 57.3 degrees
4
3.34 units
Not enough information is given to work out the radius of the circle as for instance what is the length of sector's arc in degrees
The length of an arc measuring 60 degrees given a circle with a radius of 6 is 2*pi, that is 6,2831 approximately.The perimeter of a circle is calculated with the formula:L = 2 * pi * rwhere L is the perimeter and r the radius of the circle. This is equivalent to calculating the length of an arc measuring 360 degrees. The length of any arc smaller than 360 is proportionally smaller. Given that 60 degrees is 1/6 of the total circle (360), the length of the arc will be 1/6 of the perimeter.2 * pi * 6L = --------------- = 2 * pi6
When the arc length is the same size as a circle's radius it is known as a radian and it measures just under 57.3 degrees
4
3.82 units
3.34 units
Not enough information is given to work out the radius of the circle as for instance what is the length of sector's arc in degrees
The length of an arc measuring 60 degrees given a circle with a radius of 6 is 2*pi, that is 6,2831 approximately.The perimeter of a circle is calculated with the formula:L = 2 * pi * rwhere L is the perimeter and r the radius of the circle. This is equivalent to calculating the length of an arc measuring 360 degrees. The length of any arc smaller than 360 is proportionally smaller. Given that 60 degrees is 1/6 of the total circle (360), the length of the arc will be 1/6 of the perimeter.2 * pi * 6L = --------------- = 2 * pi6
The radius of a circle is the length of the line from the center of the circle to any point on its edge.
In order to answer that question, we'd need to see the drawing, and find out how 'ab' is related to the circle.
Length of a radius is always half the diameter of a circle. This means that the circle has a radius of 2cm.
It depends on what information you have: the radius and the area of the sector or the length of the arc.
The diameter of any circle is twice its radius
The length of a radius of a circle is half of the diameter of the same circle. So, diameter is always twice the radius.