perplexus.info :: Geometry : Pentagon's constant

Pentagon's constant (Posted on 2014-12-27)

The sum of the lengths of the perpendiculars from a point inside a regular pentagon to the sides (or their extensions) is constant.

a. Prove it.
b. Derive a formula expressing it in terms of the circumradius.

No Solution Yet Submitted by Ady TZIDON

Rating: 4.0000 (1 votes)

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	Subject	Author	Date
	Solution	Harry	2014-12-27 18:16:34

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