regular tetrahedron (Q7886): Difference between revisions

@@ Property / subclass of @@
+regular pyramid
@@ Property / subclass of: regular pyramid / rank @@
+Normal rank
@@ Property / subclass of: regular pyramid / qualifier @@
+base: equilateral triangle
@@ Property / subclass of @@
+simplex
@@ Property / subclass of: simplex / rank @@
+Normal rank
@@ Property / subclass of: simplex / qualifier @@
+follows: equilateral triangle
@@ Property / subclass of: simplex / qualifier @@
+followed by: pentachoron
@@ Property / subclass of: simplex / qualifier @@
+series ordinal: 3
@@ Property / subclass of @@
+alternation
@@ Property / subclass of: alternation / rank @@
+Normal rank
@@ Property / subclass of: alternation / qualifier @@
+of: cube
@@ Property / subclass of: alternation / qualifier @@
+image: Demi-3-cube.svg
@@ Property / has quality @@
+volume
@@ Property / has quality: volume / rank @@
+Normal rank
@@ Property / has quality: volume / qualifier @@
+defining formula:  $V={{\sqrt {2}} \over 12}a^{3}$ 
V = {\sqrt{2}\over12}a^3
@@ Property / has quality @@
+surface area
@@ Property / has quality: surface area / rank @@
+Normal rank
@@ Property / has quality: surface area / qualifier @@
+defining formula:  $S={\sqrt {3}}a^{2}$ 
S = \sqrt{3}a^2

Latest revision as of 10:10, 1 May 2023