diff --git a/Grade 10/Math/MCR3U7/Unit 3: Trigonometric Equations.md b/Grade 10/Math/MCR3U7/Unit 3: Trigonometric Equations.md
index 2a23266..2c4e456 100644
--- a/Grade 10/Math/MCR3U7/Unit 3: Trigonometric Equations.md	
+++ b/Grade 10/Math/MCR3U7/Unit 3: Trigonometric Equations.md	
@@ -70,5 +70,6 @@ To find the area of a sector of a circle, the formula is as follows.
 
 $`\text{Sector Area } = (\text{Area of Circle})(\% \text{ Of Circle shaded in})`$
 
-$`A = (\pir^2)(\dfrac{\theta}{2\pi})`$
+$`A = (\pi r^2)(\dfrac{\theta}{2\pi})`$
+
 $`A = \dfrac{1}{2}\theta r^2`$