Question

A metal pipe is 77 cm long. The inner diametplof a crose
section is 4 cm, the outer diameter beina 4.4 mm
(see Fig. 13.11). Find its
(1) inner curved surface area,
(i) outer curved surface area,
(ii) total surface area.
100
0.23​

Answer 1

Answer:

this is the answer of 13.2 que.3