Item:Q5502: Difference between revisions

@@ Property / has quality @@
+inradius
@@ Property / has quality: inradius / rank @@
+Normal rank
@@ Property / has quality: inradius / qualifier @@
+defining formula:  $r={\frac {a+b-c}{2}}={\frac {ab}{a+b+c}}$ 
r = \frac{a+b-c}{2} = \frac{ab}{a+b+c}