Dante bought 15 pounds of metal for $36. Which purchase would have the same cost per pound as Dante's purchase? AS pounds of metal for $12
B6 pounds of metal for $15
C 8 pounds of metal for $18
D9 pounds of metal for $21

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet