Equation of a Circle. For more information on ratios check out our guide to SAT ratios. C 2 p r.
Each formula is used depending on the information provided.
They are widely used in all sciences that are related to geometry such as navigation solid mechanics celestial mechanics geodesy and many others. The circumference of a circle is found using this formula. Xt r cost j yt r sint k. Parametric coordinates for a circle with origin j k and radius r.