Answer:
The length of the needle is 35cm
Step-by-step explanation:
Given
[tex]End\ 1 = 5cm[/tex]
[tex]End\ 2 = 40cm[/tex]
Required
The length of the needle (L)
This is calculated as thus:
[tex]L = End\ 2 - End\ 1[/tex]
[tex]L = 40cm - 5cm[/tex]
[tex]L = 35cm[/tex]
The length of the needle is 35cm