Question

Find the length of the arc.arc circle 2A. 45π8 inB. 1890π inC. 21π4 inD. 18π in

Answer 1

Provided the following data:

`\theta=135º=2.36\text{ }rad`

and r = 7 inches, then we can calculate the length of the arc using the following equation:

`s=\theta* r`

Where s represents the length of the arc. Thus:

`s=\theta* r=2.36*7\text{ }in=16.49\text{ }in=(21\pi)/(4)in`

So the answer is option c.