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16 votes
16 votes
Find the length of each arc. Round your answers to the nearest tenth. NO LINKS!! Part 1​

Find the length of each arc. Round your answers to the nearest tenth. NO LINKS!! Part-example-1
User Plok
by
2.6k points

2 Answers

7 votes
7 votes

Length of arc=r
\theta

So

#1


\\ \rm\Rrightarrow Area=18(\pi/3)=6\pi cm

#2


\\ \rm\Rrightarrow Area=9(7\pi/4)=63\pi /4ft

User Hanne Olsen
by
2.5k points
20 votes
20 votes
Answer:
5) 18.8 cm
7) 49.5 ft

Step-by-step explanation:
The formula for arc length is S = θ * r

5) S = 18 cm * Pi/3 (60 degrees in radians)
S = 6 Pi cm
S ≈ 18.8 cm


7) S = 9 ft * 7 Pi / 4
S = 63 Pi ft / 4
S ≈ 49.5 ft
User Will Prescott
by
2.6k points
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