NCERT Solutions Class 9 Mathematics Chapter 13 Surface Area and Volume
Exercise 13.1 Q.1) A plastic box 1.5 π long, 1.25 π wide and 65 ππ 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 sheetβ¦