Item:Q7812: Difference between revisions

@@ Property / has quality @@
+circumradius
@@ Property / has quality: circumradius / rank @@
+Normal rank
@@ Property / has quality: circumradius / qualifier @@
+defining formula:  $R={\frac {a}{2}}\csc {\frac {\pi }{5}}$ 
R = \frac{a}{2}\csc\frac\pi{5}