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what is the formula for arc length of a sector. Where th equals the measure of the central angle that intercepts the arc and r equals the length of the radius. Area of semicircle area of quadrant Finding the area of a semicircle or quadrant should be a piece of cake now just think about what part of a circle they are.
How To Calculate Arc Length Of A Circle Segment And Sector Area Segmentation Circle Math Circle from www.pinterest.com
Arc of a sector th 180pr th 180 p r. TextArc length fractextangle360circ times pi times d. Where th equals the measure of the central angle that intercepts the arc and r equals the length of the radius.
You can also use the arc length calculator to find the central angle or the circles radius. Here the area of a sector is just 12rL where r is the radius and L is the arc length. A r L 2 A r L 2. How can you remember this.
