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HomertheGenius

For r = 20 in;  α = 125°;
the arc length is:
l = (  r π α ) / 180°
l = ( 20 · 3.14 · 125° ) / 180° 
l = 7,850 / 180
l = 43.611 ≈ 43.6
Answer: B ) 43.6 in.

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