Description: A famous spiral construction using the pythagorean theorem to draw the square root of any value.
$22.00
Description: A joke about a cow who can't do a calculation.
$25.00
Description: A Tatami Diagram - Used in many visual proofs including the AM-GM inequality.
$22.00
Description: A visual proof showing that the area of the regular dodecagon in a unit circle is 3.
$25.00
Description: A visual proof of the area formula for a circle.
$22.00