R 2 waist 2p 2 When making a quarter circle skirt use this formula. Yes the formula can be written as radius² x p 4. Is the area of a quarter-circle supposed to be 8² x p 4.
H and k are the x and y coordinates of the center of the circle x 9 2 y 6 2 100 is a circle centered at 9 6 with a radius of 10.
X 2 y 2 5 2. Displaystyle ybrsin t where t is a parametric variable in the range 0 to 2 p interpreted geometrically as the angle that the ray from a b to x y makes with the positive x -axis. There are an infinite number of those points here are some examples. The perimeter of a quarter circle when the radius is given is the distance around it provided the value of radius is given and is represented as P2r 1 pi4 or Perimeter2Radius 1 pi4.