The diameter of a spider's web varies directly with the number of hours the spider took to spin the web. If a spider could spin a web with a 5cm diameter in 3 hours, then how big or a
diameter could the spider spin if he spent 24 hours spinning a web?

answer: it's a

step-by-step explanation:

b. 2 and 4

step-by-step explanation:

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