Relationship Between Circumference, Radius, and Diameter
This applet is to compare the circumference, radius, and diameter of circles. Use the slider to change the size of the circle.
When you divide the circumference by the diameter, what always seems to come up?
A coffee cup and a doughnut
Open Middle: Horizontal and Vertical Distances (V1)
Range and Domain
Quick Distance Conversions
Lesson 14b Tangents to Circles