Rachel
About
Khan Academy on a Stick
Area of a Circle
Area of a Circle
Circumference and area of circles
Circles: Radius, Diameter and Circumference
Parts of a Circle
Area of a Circle
Your browser does not support video. Please get the latest version of Google Chrome, Firefox, IE, or Safari. Alternately, you can try the link below if you have VLC or another media player installed.
If the above player doesn't work, you can
try this direct link
.