added solution file

Author: UmiKami

exercises/04-Call-a-function/solution.hide.py

@@ -0,0 +1,7 @@
+def calculate_area(length,edge):
+	return length * edge
+
+# Your code Below this line:
+square_area1 = calculate_area(4,4)
+square_area2 = calculate_area(2,2)
+square_area3 = calculate_area(5,5)