Question

The radius of the circular pipe is 10 cm. What length of a tape is required to wrap once around the pipe? ($\text{Take}\pi =3.14$)

Answer 1

Given that,

Radius of the circular pipe, $r$ is $10cm$.

To find out,

Length of tape that can be wrapped around the pipe once

The pipe is circular in shape.

Hence, the length of tape required to wrap around the pipe will be equal to the circumference of the pipe.

We know that,

$\text{Circumference of a circle}=2\pi r\text{units}$

Here, $r=10cm\text{and}\pi =3.14$

$\therefore C=2\pi r=2\times 3.14\times 10=62.8cm$

Hence, the length of the tape required to wrap once around the given pipe is $62.8cm$.