diff --git a/06-variables/04-assignment/exercises/04-find-the-rectangle-area/main.go b/06-variables/04-assignment/exercises/04-find-the-rectangle-perimeter/main.go
similarity index 76%
rename from 06-variables/04-assignment/exercises/04-find-the-rectangle-area/main.go
rename to 06-variables/04-assignment/exercises/04-find-the-rectangle-perimeter/main.go
index 68a4634..4a89de9 100644
--- a/06-variables/04-assignment/exercises/04-find-the-rectangle-area/main.go
+++ b/06-variables/04-assignment/exercises/04-find-the-rectangle-perimeter/main.go
@@ -8,15 +8,15 @@
 package main
 
 // ---------------------------------------------------------
-// EXERCISE: Find the Rectangle's Area
+// EXERCISE: Find the Rectangle's Perimeter
 //
-//  1. Find the area of a rectangle
+//  1. Find the perimeter of a rectangle
 //     Its width is  5
 //     Its height is 6
 //
-//  2. Assign the result to the `area` variable
+//  2. Assign the result to the `perimeter` variable
 //
-//  3. Print the `area` variable
+//  3. Print the `perimeter` variable
 //
 // HINT
 //  Rectangle formula = 2 * (width + height)
@@ -29,7 +29,7 @@ func main() {
 	// UNCOMMENT THE CODE BELOW:
 
 	// var (
-	// 	area        int
+	// 	perimeter        int
 	// 	width, height = 5, 6
 	// )
 
diff --git a/06-variables/04-assignment/exercises/04-find-the-rectangle-area/solution/main.go b/06-variables/04-assignment/exercises/04-find-the-rectangle-perimeter/solution/main.go
similarity index 82%
rename from 06-variables/04-assignment/exercises/04-find-the-rectangle-area/solution/main.go
rename to 06-variables/04-assignment/exercises/04-find-the-rectangle-perimeter/solution/main.go
index 86114dd..24a5ef6 100644
--- a/06-variables/04-assignment/exercises/04-find-the-rectangle-area/solution/main.go
+++ b/06-variables/04-assignment/exercises/04-find-the-rectangle-perimeter/solution/main.go
@@ -11,7 +11,7 @@ import "fmt"
 
 func main() {
 	var (
-		area          int
+		perimeter     int
 		width, height = 5, 6
 	)
 
@@ -20,7 +20,7 @@ func main() {
 
 	// just like in math
 
-	area = 2 * (width + height)
+	perimeter = 2 * (width + height)
 
-	fmt.Println(area)
+	fmt.Println(perimeter)
 }
diff --git a/06-variables/04-assignment/exercises/README.md b/06-variables/04-assignment/exercises/README.md
index 7a8fdfb..a372fef 100644
--- a/06-variables/04-assignment/exercises/README.md
+++ b/06-variables/04-assignment/exercises/README.md
@@ -10,7 +10,7 @@ Now, get your feet wet and try some assignment exercises.
 
 3. **[Assign With Expressions](https://github.com/inancgumus/learngo/tree/master/06-variables/04-assignment/exercises/03-assign-with-expressions)**
 
-4. **[Find the Rectangle's Area](https://github.com/inancgumus/learngo/tree/master/06-variables/04-assignment/exercises/04-find-the-rectangle-area)**
+4. **[Find the Rectangle's Perimeter](https://github.com/inancgumus/learngo/tree/master/06-variables/04-assignment/exercises/04-find-the-rectangle-perimeter)**
 
 5. **[Multi Assign](https://github.com/inancgumus/learngo/tree/master/06-variables/04-assignment/exercises/05-multi-assign)**