diff --git a/intro_lab/README.md b/intro_lab/README.md
index cb8f9d494c2298323c27a55b620d3047dc709792..6c56b814c11b4317ed1ae557c7dff7e86bc754cd 100644
--- a/intro_lab/README.md
+++ b/intro_lab/README.md
@@ -107,7 +107,7 @@ The figure below shows the numerical technique, we are going to use to calculate
 
 Mathematically, we know that
 
-<img src="image/pi_eq_1.png" alt="PI_Eq_1" width="200px"/>
+<img src="image/pi_eq_1.png" alt="PI_Eq_1" width="220px"/>
 
 We can approximate the integral as a sum of rectangles
 
diff --git a/intro_lab/image/pi_eq_1.png b/intro_lab/image/pi_eq_1.png
index 2a06f4079469db2ab7cffb0096b17f72e5840033..e5960b0709fb540cdf9aa2e05656f49381db4c80 100644
Binary files a/intro_lab/image/pi_eq_1.png and b/intro_lab/image/pi_eq_1.png differ
diff --git a/intro_lab/image/pi_eq_2.png b/intro_lab/image/pi_eq_2.png
index 7a31ca0c5f6c33d537aedaa6e9f0f75f7f6dd6dc..9aa91a33b46951708d111b0e5ff75e492af6b72b 100644
Binary files a/intro_lab/image/pi_eq_2.png and b/intro_lab/image/pi_eq_2.png differ