The length of the string that goes round the rod 5 times is: 20 cm.
Circumference of a Circle
The circumference of a circle is the distance round the perimeter of a circle.
We are given that the circumference of a rod that is 15 cm long, is 4 cm.
If the string goes round the rod five times, therefore:
Length of the string = 4cm × 5 = 20 cm.
Thus, the length of the string that goes round the rod 5 times is: 20 cm.
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