Khan Academy Static

A circle is the locus of all points equidistant from a central point. Here we will learn basic concepts related to circle -- radius, diameter, circumference, area.

8454_Circumference_of_a_circle.html

8455_Area_of_a_shaded_region.html

8453_Radius_diameter_circumference_.html

8456_Impact_of_increasing_the_radius.html