NCERT Solutions for Class 9 Maths Lesson 12 Chapter 12 Exercise 12.1 Question 2. In this video, you will find solutions for class 9 Maths lesson 12 question number 2 of exercise 12.1 of lesson 12 NCERT Maths Class 9. NCERT Maths Class 9 Lesson 12 Exercise 12.1 Question 2. Class 9 Maths Chapter 12 Exercise 12.1 Question 2. In this video you will learn how to solve Question 2 of Exercise 12.1 of NCERT Maths Class 9 Chapter 12 Heron's Formula. The triangular side walls of a flyover have been used for advertisements. The sides of the walls are 122 m, 22 m and 120 m (see Fig. 12.9). The advertisements yield an earning of Rs 5000 per m2 per year. A company hired one of its walls for 3 months. How much rent did it pay? It is well known to every viewers of YouTube, that NumberX is publishing Best YouTube Channel For NCERT Solutions for Class 9, Class 10, Class 11 and Class 12. #bestsolution, #bestsolutionsonYouTube,