- Why is it that in finding the area of a circle you use radius not the diameter?

Discover Questions

When was Triangle released? What are the center and radius of the circle defined by the equation x2 plus y2-6 plus 8y plus 210? What is the maximum number of possible intersections of the given loci a pair of concentric circles and a line? What is the radius of a circle if the area is 7234.56? Does a line lie in only one plane?