Question

Which proportion can be used to find the arc length, s, in units?

Answer 1

Option B

Explanation:

Formula to be used to calculate the length of an arc,

Length of arc =
`(\theta)/(360)(2\pi r)`

Here, θ = Angle subtended at the center by the arc

r = radius of the circle

By substituting values in the formula,

s =
`(150)/(360)(2\pi )(42)`

`(s)/(2* 42\pi )=(150)/(360)((2* 24\pi )/(2* 24\pi ) )`

`(s)/(84 \pi )=(150)/(360)`

Therefore, Option B will be the answer.