Multiply (2.0 ⋅ 10−4) ⋅ (3.1 ⋅ 10−20). express the answer in scientific notation. the options are:
a: 6.2 ⋅ 10−80
b: 6.2 ⋅ 10−24
c: 6.2 ⋅ 1024
d: 6.2 ⋅ 1080

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