Question

Use the arc length formula and the given information to find s. Show your work for full credit.
r = 20 ft θ = 19° s = ?

Answer 1

\[\theta=19=\frac{ \pi }{180 }\times19=\frac{ 19\pi }{ 180 }~radians.\]
\[\theta=\frac{ s }{ r },s=r \theta=20\times \frac{ 19\pi }{180 }\]
\[=\frac{ 19 \pi }{9 }ft\]

Answer 2

So then would it be 19*3.14 /9 = 59366/9 = 6.63 ft

Answer 3

ratio
angle/360 = arc length/2*pi*r
angle =19, r = 20, arc length = s
solve for s

Answer 4

correct.

Answer 5

is this what you mean?

Answer 6

@surjithayer Thanks!

Answer 7

yes and pi is usually 3.142

Answer 8

yw