|Activity: A Japanese Temple Problem|
|Go to:||http://www.pballew.net/GS_EXP19.html (opens a new window)|
|Description:||In this guided Geometer's Sketchpad exploration, students use their knowledge of tangent circles to discover a relationship between the radii of three circles which are mutually tangent to each other and an external line.
This proof was drawn up on a wooden block and hung in a temple in Gunma prefecture of Japan in the early 1800's . The practice of hanging such proofs was called Sangaku.
|Author:||Pat Ballew: Explorations in Geometry|
|Cost:||Does not require payment for use|
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