Annular area

The square with side a = 1 is inscribed and circumscribed by circles. Find the annular area.

Your answer:



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Tips to related online calculators
Pythagorean theorem is the base for the right triangle calculator.
See also our trigonometric triangle calculator.

You need to know the following knowledge to solve this word math problem:


 
We encourage you to watch this tutorial video on this math problem: video1   video2