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how to find the perimeter circle. Circumference of a semi-circle frac 2pi r 2 pr and the perimeter of a semi-circular shape p 2 r units. The added complexity comes from the need to calculate how much of a circle a sector accounts for.
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Perimeter of a Rectangle. Learn that the perimeter of a circle has its own special name called circumference The symbol is a capital C. You could add all four sides together ex.
To find the circumference C C perimeter of the area of a circle A A you apply the formula.
If you take a whole circle and slice it into four pieces then one of those slices makes a quarter circle. Determine the circumference of a circle by. P frac12 31412 12. Visual on the figure below.
