Math in… Tree Rings

Written By Brian Elieson

The annual growth rings of trees are examples of concentric circles in nature. Concentric circles are circles with a common center, but sometimes different radii (plural of radius).

The region bound by two concentric circles is called an annulus.

Can you think of other concentric circles in nature?

Brian Elieson
Previous

Math in… Scaling Maps
Next

Math in… Ice Cream Cones