1. The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. Find the diameter of the base of the cylinder.
2. It is required to make a closed cylindrical tank of height 1 m and base diameter 140 cm from a metal sheet. How many square metres of the sheet are required for the same ?
3. A metal pipe is 77 cm long. The inner diameter of a cross section is 4 cm, the outer diameter being 4.4 cm (see fig. 13.11). Find its
(i) inner curved surface area,
(ii) outer curved surface area,
(iii) total surface area.

Dear Student,
Your question is not clear as you haven't mentioned the question number which you want to be answered. Recheck your question and please be a little specific so that we can provide you with some meaningful help.
If you have more than one query, we request you to please ask in separate threads.Looking forward to hear from you again!
Regards

  • 1
What are you looking for?