Enjoy the flight....
.... And, learn something new...
(from a question posed on cartalk.com puzzler)
Given 2 concentric circles.
The chord of the outer circle is tangent to the inner circle.
If the length of the chord is 70 units, what is the shaded area between the circles?
Circles and related geometry topics and questions at dummies.com
Solving unknown values related to a circle and other geometry videos from hippocampus.org
Math Comic #181 - "The Pi Piper of Hamelin" (Special Pi Day)
3/14/15 @ 9:26:54 AM