perplexus.info :: Shapes : Making Dice, Part 2

Making Dice, Part 2 (Posted on 2003-04-17)

My friend finished making dodecahedrons, and her next project is to make regular icosahedrons (20-sided dice). Again she wants to know: what is the dihedral angle between any two adjacent faces?

Perhaps this can be solved without the use of spherical trig? ;P

See The Solution Submitted by Bryan

Rating: 3.7500 (4 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Puzzle Thoughts	K Sengupta	2023-03-05 01:34:44
Solution	Tristan	2005-01-14 03:16:59
My last solution is wrong this is the real one	Antonio	2003-08-21 21:47:11
Solution	Antonio	2003-08-21 20:41:52
re(2): solution (cheater)	Lewis	2003-06-09 11:17:31
re: solution	Tim Axoy	2003-06-09 10:19:41
solution	Tim Axoy	2003-04-18 12:55:41
re: solution without spherical trig	Bryan	2003-04-17 04:41:25
But, for the record	Charlie	2003-04-17 03:59:45
solution without spherical trig	Charlie	2003-04-17 03:55:24

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