diff --git a/lv2/marinlv2/1-raznostranican.cpp b/lv2/marinlv2/1-raznostranican.cpp
index 0107e9d..cd23c3f 100644
--- a/lv2/marinlv2/1-raznostranican.cpp
+++ b/lv2/marinlv2/1-raznostranican.cpp
@@ -1,8 +1,14 @@
-#include <iostream>
+#include <iostream>
 
 //heron: https://en.wikipedia.org/wiki/Heron%27s_formula
 //glasi: a=sqrt(s(s-a)(s-b)(s-c))
 //operatori: *,/,sqrt 
+
+/*
+
+Heronova formula tvrdi da je površina A, trokuta čije su stranice a, b i c, jednaka:
+a=sqrt(s(s-a)(s-b)(s-c))
+*/
 int main() {
 	double s1, s2, s3;
 	std::cout << "unesi 3 stranice:";