diff --git a/imgs/polygons/3.png b/imgs/polygons/3.png
index fb3c119..2c71d03 100644
Binary files a/imgs/polygons/3.png and b/imgs/polygons/3.png differ
diff --git a/imgs/polygons/4.png b/imgs/polygons/4.png
index ac6f763..c570e99 100644
Binary files a/imgs/polygons/4.png and b/imgs/polygons/4.png differ
diff --git a/imgs/polygons/5.png b/imgs/polygons/5.png
index 7e49a90..e55a9ac 100644
Binary files a/imgs/polygons/5.png and b/imgs/polygons/5.png differ
diff --git a/imgs/polygons/6.png b/imgs/polygons/6.png
index 62203f2..1a78410 100644
Binary files a/imgs/polygons/6.png and b/imgs/polygons/6.png differ
diff --git a/imgs/polygons/7.png b/imgs/polygons/7.png
index 03e19e4..52a910a 100644
Binary files a/imgs/polygons/7.png and b/imgs/polygons/7.png differ
diff --git a/src/main.rs b/src/main.rs
index 45742cb..1b392a5 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -24,11 +24,11 @@ fn polygon(corners_number: u32, steps_count: u32, output_path: &'static str) {
 }
 
 fn main() {
-    polygon(3, 10, "imgs/polygons/3.png");
-    polygon(4, 8, "imgs/polygons/4.png");
-    polygon(5, 6, "imgs/polygons/5.png");
-    polygon(6, 5, "imgs/polygons/6.png");
-    polygon(7, 4, "imgs/polygons/7.png");
+    polygon(3, 11, "imgs/polygons/3.png");
+    polygon(4, 9, "imgs/polygons/4.png");
+    polygon(5, 7, "imgs/polygons/5.png");
+    polygon(6, 6, "imgs/polygons/6.png");
+    polygon(7, 5, "imgs/polygons/7.png");
     polygon(8, 4, "imgs/polygons/8.png");
     polygon(9, 4, "imgs/polygons/9.png");
     polygon(36, 1, "imgs/polygons/36.png");
diff --git a/src/turtle.rs b/src/turtle.rs
index 772826d..10ccf24 100644
--- a/src/turtle.rs
+++ b/src/turtle.rs
@@ -99,15 +99,13 @@ impl Turtle {
 
     pub fn forward(&mut self, steps_count: u32) {
         let start_pos = self.pos;
-
-        let dy = self.angle.sin() * steps_count as f64 * self.step_length as f64;
-        let dx = self.angle.cos() * steps_count as f64 * self.step_length as f64;
+        let (sin, cos) = self.angle.sin_cos();
+        let step = steps_count * self.step_length;
         
-        self.set_pos((
-            self.pos.0 + dx.round() as i32,
-            self.pos.1 + dy.round() as i32
-        ));
-
+        self.pos = (
+            self.pos.0 + (cos * step as f64).round() as i32,
+            self.pos.1 + (sin * step as f64).round() as i32,
+        );
         self.draw_line(start_pos, self.pos);
     }