Question

If the radius of a circle is 3 m how long is the art subtended by angle measure 30 ?

Answer 1

I got `1.57m`

Explanation:

I think you have this kind of situation:

where you need the length `a`.
We can use the fact that:
`s=r*"angle"`
BUT the angle has to be in radians:
`30^@=pi/6`
so we get:
`s=3*3.14/6=1.57m`