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Verified Answer :

s = r π α / 180°
r = 3 ft,  α = 57°
s = 3 · π · 57° / 180° = 19/20 π ft = 0.95 π ft ≈ 2.983 ft
Answer: the arc length is 2.983 ft.

Answer:

The length of the arc is 2.98 feet.

Step-by-step explanation:

Given : For a circle of radius 3 feet, the arc length s subtended by a central angle of 57 degrees.

To find : The arc length

Solution :

Formula of arc length is \(L=r\times \theta\)

Where L is the arc length, r is the radius and \(\theta\) is the angle (in radians)

The radius given is r=3 feet.

The angle subtended is \(\theta=57^\circ\)

Convert degree into radians

\(1^\circ= \frac{\pi }{180}\)  radians

\(57^\circ= 57\times\frac{\pi }{180}\) radians

Substitute in the formula,

\(L=r\times \theta\)

\(L=3\times 57\times\frac{\pi}{180}\)

\(L=57\times\frac{\pi}{60}\)

\(L=0.95\pi\)

\(L=0.95\times 3.14=2.98\)

Therefore, The length of the arc is 2.98 feet.