Asked by olawunmi
shows a circular wire clip of radius 7mm with a gap of 7mm between the ends.calculate the total length of wire in the clip to the nearest mm,given that about 4mm are used altogether in making the turnover at the end.
Answers
Answered by
oobleck
The gap subtends an angle θ where sin(θ/2) = 2/7, so θ = 0.58 radians
That makes the length of arc of wire = 2πr-rθ = 40 mm
Not sure what the "turnaround" involves, but it sounds like 44mm is the result
That makes the length of arc of wire = 2πr-rθ = 40 mm
Not sure what the "turnaround" involves, but it sounds like 44mm is the result
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