>>950 >>951
 修正乙

>>949
5  0.059698329545752329 = 1/{9√(2√3)}
       正3角形プリズム、(正3角形の辺)/(高さ) = tan(π/3) = √3
7  0.071398254996602697 = (1/15)√{(5/6)cot(π/5)} 
       正5角形プリズム、(正5角形の辺)/(高さ) = tan(π/5)
9  0.076900
10  0.078734752898039745  4角形×2, 5角形×8  (Siフラーレン)
12  0.081688371824182551 = φ^{7/4} /(6(√3)・5^{5/8}) 正12面体 
17  0.085206

cot(π/5) = φ^{3/2} / 5^{1/4} = 1.37638192
φ = (1+√5)/2 = 1.61803398875