This is your answer.....
Given ::::
Radius of pipe = 14 cm.
If we wrap ... then it means that we cover the circumference...
So circumference = 2πr
= 2 × 3.14 × 14
= 87.92
But according to the question....
The tape is to be wrapped twice.....
so...
= 2 × 87.92
= 175.84 cm.
Hence the length of tape required is
175.84 m.