 Hello friends, welcome to the session I am Alka. Let us discuss a given question. State which pair of triangles in figures 6.34 are similar. Write the similarity criteria used by you for answering the question and also write the pairs of similar triangles in the symbolic form. We are given with the figure where m n l is a triangle and angle m equal to 70 degree and the side m n equal to 2.5 and m l equal to 5 and another triangle p q r where angle q equal to 70 degree and the side p q equal to 6 and the side q r equal to 10. Now let us start with the solution. First of all we will consider both the triangles triangle m n l and triangle p q r. So in triangle equal to angle q is equal to 70 degree angle m e q and both these angles are equal to 70 degree. Motion of the sides we see that m n can also be written as 25 upon 60 or this is equal to 5 upon clearly we will take the ratio of other two sides that is equal to 5 upon 1 upon 2. So here we see that the ratio of the two sides are not equal that is m n upon p q is not equal to m l upon q r is not equal to m l upon. From this we conclude that the two triangles are not similar as they do not satisfy s a s criteria of similarity. So we can say that these two triangles are not similar as they do not satisfy s a s criteria of similarity. So the required answer is no. Hope you understood the session and enjoyed it. Keep smiling and take care.