Question

3.
urta
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
(1) inner curved surface area,
reha
(ii) outer curved surface area,
these
(iii) total surface area,
„C
.C.
along
Fig. 13.11
str​

Answer 1

Step-by-step explanation:

now see your answer in this photo