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vagabundo [1.1K]
3 years ago
11

A circle has a radius of 8ft. Find the length s of the arc intercepted by a central angle of π3 radians. Do not round any interm

ediate computations, and round your answer to the nearest tenth.
Mathematics
1 answer:
kirill [66]3 years ago
6 0

Answer:

8.4ft

Step-by-step explanation:

Formula for calculating the length of an arc is expressed as L = \frac{\theta}{360}  * 2\pi  r\\

\theta is the central angle = π/3 rad

r is the radius of the circle = 8ft

Substituting the values into the formula above we have;

L = \frac{(\frac{\pi}{3} )}{2 \pi} * 2\pi (8)\\\\

L = \frac{\pi}{6 \pi} * 2\pi(8) \\\\L = 1/6 * 16\pi\\\\L = 8\pi/3\\\\L = \frac{8(22/7)}{3} \\\\L = \frac{8*22}{7*3}\\ \\L = 176/21\\\\L = 8.4 ft (to\ the\ nearest\ tenth)

Hence, the length of the arc s is approximately 8.4 ft.

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