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Inessa05 [86]
3 years ago
15

In a circle with a radius of 8 ft, an arc is intercepted by a central angle of 3π4 radians.

Mathematics
2 answers:
sineoko [7]3 years ago
8 0
We know that

the length of a circumference=2*pi*r
for r=8 ft
the length of a circumference=2*pi*8---------> 16π ft

if 2π radians  (full circle)-------------------> has a length of 16π ft
3π/4 radians-------------------------------> X
X=3π/4*16π/2π-------------> X=6π<span> ft

the answer is
6</span>π ft
frez [133]3 years ago
7 0

Answer:

(C) 6{\pi}ft.

Step-by-step explanation:

It is given that In a circle with a radius of 8 ft, an arc is intercepted by a central angle of \frac{3\pi}{4} radians. Then the length of the arc  is given by:

Length of the arc=radius×angle in radians

⇒Length of the arc=8{\times}\frac{3\pi}{4}

⇒Length of the arc=6{\pi}ft

Therefore, the length of the arc is 6{\pi}ft.

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