Question

What is the degree measure of an arc 4 ft. long in a circle of radius 10 ft.?

Answer 1

x = degree measure
y = length of arc

\(\dfrac{x}{360} = \dfrac{y}{2 \pi r}\)

y = 4
r = 10

\(\dfrac{x}{360} = \dfrac{4}{2(10)\pi}\)

\(x = \dfrac{360}{2(10) \pi}\)

Answer 2

thanks