1 files changed, 4 insertions, 0 deletions
diff --git a/progs/a25.py b/progs/a25.py
new file mode 100644
index 0000000..30674f9
--- /dev/null
+++ b/progs/a25.py
@@ -0,0 +1,4 @@
+def triangle_area(r) :  
+    if r < 0 : 
+        return -1
+    return r * r 
+\ No newline at end of file