Question

A metal pipe is 98 cm long. The inner diameter of the cross-section is 6 cm and outer
diameter is 6.6 cm. Find:
(a) its inner curved surface area
b) Outer curved surface area
(c) Total surface area​

Answer 1

Answer:

Step-by-step explanation:

inner circle= π*r ²

area= 22/7 * ( 3)²

area=22/7*(9)

area= 28.28 cm²

outer circle= π*r²

area=22/7*(3.3)²

area=22/7*(10.89)

area=34.22 cm²