equilateral triangle (Q7777): Difference between revisions

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@@ Property / subclass of @@
+simplex
@@ Property / subclass of: simplex / rank @@
+Normal rank
@@ Property / subclass of: simplex / qualifier @@
+follows: line segment
@@ Property / subclass of: simplex / qualifier @@
+followed by: regular tetrahedron
@@ Property / subclass of: simplex / qualifier @@
+series ordinal: 2
@@ Property / subclass of @@
+constructible polygon
@@ Property / subclass of: constructible polygon / rank @@
+Normal rank
@@ Property / subclass of @@
+equilateral polygon
@@ Property / subclass of: equilateral polygon / rank @@
+Normal rank
@@ Property / subclass of: equilateral polygon / qualifier @@
+followed by: rhombus
@@ Property / subclass of @@
+equiangular polygon
@@ Property / subclass of: equiangular polygon / rank @@
+Normal rank
@@ Property / subclass of: equiangular polygon / qualifier @@
+followed by: rectangle
@@ Property / has quality @@
+perimeter
@@ Property / has quality: perimeter / rank @@
+Normal rank
@@ Property / has quality: perimeter / qualifier @@
+defining formula:  $P=3a$ 
P=3a
@@ Property / has quality @@
+area of plane shape
@@ Property / has quality: area of plane shape / rank @@
+Normal rank
@@ Property / has quality: area of plane shape / qualifier @@
+defining formula:  $A=a^{2}{\frac {\sqrt {3}}{4}}$ 
A=a^2\frac{\sqrt{3}}{4}
@@ Property / has quality @@
+inradius
@@ Property / has quality: inradius / rank @@
+Normal rank
@@ Property / has quality: inradius / qualifier @@
+defining formula:  $r={\frac {\sqrt {3}}{6}}a$ 
r=\frac{\sqrt{3}}{6}a
@@ Property / has quality @@
+circumradius
@@ Property / has quality: circumradius / rank @@
+Normal rank
@@ Property / has quality: circumradius / qualifier @@
+defining formula:  $R={\frac {\sqrt {3}}{3}}a$ 
R=\frac{\sqrt{3}}{3}a
@@ Property / has quality @@
+reflection symmetry
@@ Property / has quality: reflection symmetry / rank @@
+Normal rank
@@ Property / has quality @@
+isoperimetric ratio
@@ Property / has quality: isoperimetric ratio / rank @@
+Normal rank
@@ Property / has quality: isoperimetric ratio / qualifier @@
+numeric value: 12Amount 12
Unit 1
 Amount
 Unit