surface areas and volumes class 9 exercise 13.4 || QUESTION number 7 to 9

#surfaceareasandvolumesclass9exercise13.4 #2piclasses this thumbnail is created by Mr. Aman sharma so credit goes to him ..wana meet him clcik here-   / @amansharmax-d1970   7. The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas. 8. A hemispherical bowl is made of steel, 0.25 cm thick. The inner radius of the bowl is 5 cm. Find the outer curved surface area of the bowl. 9. A right circular cylinder just encloses a sphere of radius r (see Fig. 13.22). Find (i) surface area of the sphere, (ii) curved surface area of the cylinder, (iii) ratio of the areas obtained in (i) and (ii). exercise 13.4 class 9 maths ncert solutions for class 9 maths chapter 13 exercise 13.4 class 9 maths chapter 13 exercise 13.4 exercise 13.4 class 9 maths solution class 9 maths ex 13.4 class 9 maths 13.4 ex 13.4 class 9 ncert solutions class 9 maths chapter 13.4 maths class 9 chapter 13 exercise 13.4 class 9 chapter 13 exercise 13.4 ncert solutions for class 9 maths ex 13.4 ncert class 9 maths chapter 13 exercise 13.4