NCERT Solutions Class 9 Mathematics Chapter 13 Surface Area and Volume

Exercise 13.1 Q.1) A plastic box 1.5 𝑚 long, 1.25 𝑚 wide and 65 𝑐𝑚 deep is to be made. It is opened at the top. Ignoring the thickness of the plastic sheet, determine: (i) The area of the sheet required for making the box. (ii) The cost of sheet for it, if a sheet…