 Hello and welcome to the session. I am Deepika here. Let's discuss the question find the distance between the following pair of points 2, 3 and 4, 1. So let us first learn how to find the distance between points p and q, x1, y1, q x2, y2. This point x1, y1 and q is the point whose coordinates are x2, y2. Draw p or perpendicular to x axis as well as q is perpendicular to x axis. A perpendicular from the point p on q s is drawn to meet it at the point t is equal to y2, qt is equal to so now applying the Pythagoras theorem to the triangle p qt is equal to just qt square is equal to x2 minus x1 square, t square is y2 minus y1 square. So therefore is equal to square plus y2 minus y1 square always non-negative only the positive value. Positive value of this square root, positive square root between the points is given by pq is equal to x1 square plus y2 minus y1 square the distance formula. We have derived the distance formula and this is the key idea behind this question. Help of this key idea to solve our question. So let's start the solution. Be the given points. Let us apply the distance formula so by distance formula we have the distance pq is equal to c square so which is equal to so this is equal to which is again equal to 2 root. For this question is the distance between p and q is 2 root. The question is clear to you. Enjoy yourself.