From f8ea998c81cedc1c60a178f8cc3717207f6345a2 Mon Sep 17 00:00:00 2001
From: Blaze2305 <44285159+Blaze2305@users.noreply.github.com>
Date: Sun, 25 Nov 2018 23:52:02 +0530
Subject: [PATCH] added geometrical meaning of 2 by 2 determinant (#22737)

---
 guide/english/mathematics/2-by-2-determinants/index.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/guide/english/mathematics/2-by-2-determinants/index.md b/guide/english/mathematics/2-by-2-determinants/index.md
index e45ad49786..b15ace4ba1 100644
--- a/guide/english/mathematics/2-by-2-determinants/index.md
+++ b/guide/english/mathematics/2-by-2-determinants/index.md
@@ -6,6 +6,8 @@ title: 2 by 2 Determinants
 
 In linear algebra, the determinant of a two-by-two matrix is a useful quantity. Mostly it is used to calculate the area of the given quadilateral (convex polygons only) and is also an easy representation of a quadilateral(convex polygons only) to be stored in computers as arrays. Scientists, engineers, and mathematicians use determinants in many everyday applications including image and graphic processing. 
 
+Geometrically , the determinant of a 2 by 2 matrix is the area of a unit square when the matrix transformation is applied to the plane.
+
 Calculating the determinant of a square two-by-two matrix is simple, and is the basis of the [Laplace formula](https://en.wikipedia.org/wiki/Laplace_expansion) used for calculating determinants for larger square matrices.
 
 Given a matrix A, the determinant of A (written as |A|) is given by the following equation: