tetrahedron (Q7887): Difference between revisions

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@@ Property / subclass of @@
+convex polyhedron
@@ Property / subclass of: convex polyhedron / rank @@
+Normal rank
@@ Property / subclass of @@
+tetratope
@@ Property / subclass of: tetratope / rank @@
+Normal rank
@@ Property / follows @@
+trihedron
@@ Property / follows: trihedron / rank @@
+Normal rank
@@ Property / followed by @@
+pentahedron
@@ Property / followed by: pentahedron / rank @@
+Normal rank
@@ Property / has quality @@
+inradius
@@ Property / has quality: inradius / rank @@
+Normal rank
@@ Property / has quality: inradius / qualifier @@
+defining formula:  ${\frac {1}{r_{1}^{2}}}+{\frac {1}{r_{2}^{2}}}+{\frac {1}{r_{3}^{2}}}+{\frac {1}{r_{4}^{2}}}\leq {\frac {2}{r^{2}}}$ 
\frac{1}{r_1^2} + \frac{1}{r_2^2} + \frac{1}{r_3^2} + \frac{1}{r_4^2} \leq \frac{2}{r^2}
@@ Property / has quality @@
+volume
@@ Property / has quality: volume / rank @@
+Normal rank
@@ Property / has quality: volume / qualifier @@
+defining formula:  $V=1/3A_{0}h$ 
V = 1/3 A_0 h
@@ Property / has quality @@
+sphericity
@@ Property / has quality: sphericity / rank @@
+Normal rank
@@ Property / has quality: sphericity / qualifier @@
+numeric value: 0.6711392913128503694920290616644451317579168462074751242138997126Amount 0.6711392913128503694920290616644451317579168462074751242138997126
Unit 1
-Amount
+.6711392913128503694920290616644451317579168462074751242138997126
 Unit