Question

I don't understand this question, picture attached.

Answer 1

We can find this using the formula for arc length (where
`r` is the radius of the circle and
`\theta` is the central angle in radians):

`\textrm{Arc Length} = r\theta`

In our problem, we are given
`12 = 8\theta`. This means that:

`\theta = (12)/(8) = \boxed{(3)/(2)}`

The measure of the angle is 1.5.