Equation of Circle The equation of circle is: Centre: (a,b) Radius: r Memory Tip The equation is actually Pythagoras’ Theorem !!! Please take note of the minus sign “(x-a), (y-b)” Share this:TwitterFacebookMoreLinkedInRedditTumblrPinterestPocketEmailPrintLike this:Like Loading... Related Author: mathtuition88 https://mathtuition88.com/ View all posts by mathtuition88