Question

Find the degree measure of an arc of length

look at picture

with a radius of 15m .

Answer 1

160⁰

Explanation:

all is included in the picture, just use the formula and substitute the values

Answer 2

160º

Explanation:

Length of an arc = 2πr(θ/360º)

40π/3 = 2πr(θ/360)

20 = (3x15)(θ/360)

20 x 360 = 45θ

θ = 7200/45 = 160º