A circle wire clip of radius 7mm with a gap of 7mm between the ends. Calculate the total length of wire in clip to the nearest mm, given that about 4mm are used altogether in making the turnovers at the ends.

Answer 1

The length of wire in the clip can be calculated by finding the circumference of the circle and subtracting the gap between the ends:

Circumference = 2πr
Circumference = 2π(7mm)
Circumference = 44mm

Total length of wire = 44mm - 7mm (gap) + 2(4mm) (turnovers)
Total length of wire = 44mm - 7mm + 8mm
Total length of wire = 45mm (rounded to nearest mm)

Therefore, the total length of wire in the clip is about 45mm.