Respuesta :

The circumference is given by:
 C = 2 * pi * r
 Where,
 r: radio
 Substituting we have:
 C = 2 * (3.14) * (3/2)
 C = 9.42 cm
 Then, the length is given by the product of the circumference and the number of revolutions.
 We have then:
 L = (150) * (9.42)
 L = 1413 cm
 Answer:
 
the length of the thread is:
 
L = 1413 cm