+120 In the gym, there is a scale that measures people's weight. The needle is 22 cm long, and it rotated 124° when Evelyn stepped on it. How far did the needle travel as it rotated?
+425 Length of needle = Radius of Circle
= 22 cm
Circumference of circle = \(2πr \\ = 2π \times 22 (π = 3.142) \\ = 2 \times 3.142 \times 22 \\ = 6.284 \times 22 \\ = 138.248\)
\(360º = 138.248cm | ÷ \frac{360}{124} \\ 124º = 47.619cm\)
The answer is rounded to 3 decimal places.
Answer: 47.619 cm
