Let ∠d be an acute angle such that sind=0.75. use a calculator to approximate the measure of ∠d to the nearest tenth of a degree.

m∠d≈

b.

step-by-step explanation:

i just know

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